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  Plantae
      Magnoliophyta
         Eudicots
             Core Eudicots
                    Caryophyllales
                            Polygonaceae
                                     Acanthogonum
                                             Acanthogonum polygonoides
                                     Acanthoscyphus
                                             Acanthoscyphus parishii
                                                   [Oxytheca parishii]
                                               Acanthoscyphus parishii var. abramsii
                                                     [Eriogonum abramsii]
                                                     [Oxytheca abramsii]
                                                     [Oxytheca parishii ssp. abramsii]
                                                     [Oxytheca parishii var. abramsii]
                                               Acanthoscyphus parishii var. cienegensis
                                                     [Oxytheca parishii var. cienegensis]
                                                     [Oxytheca parishii var. ciengensis]
                                               Acanthoscyphus parishii var. goodmaniana
                                                     [Oxytheca parishii var. goodmaniana]
                                               Acanthoscyphus parishii var. parishii
                                                     [Oxytheca parishii var. parishii]
                                     Acetosa
                                             Acetosa pratensis
                                     Acetosella
                                             Acetosella paucifolia
                                             Acetosella vulgaris
                                     Aconogonon
                                             Aconogonon alaskanum
                                                   [Aconogonum alaskanum]
                                               Aconogonon alaskanum var. alaskanum
                                                     [Aconogonon hultenianum var. lapathifolium]
                                                     [Aconogonon hultenianum]
                                                     [Aconogonum hultenianum var. lapathifolium]
                                                     [Aconogonum hultenianum]
                                                     [Polygonum alaskanum]
                                               Aconogonon alaskanum var. glabrescens
                                                     [Aconogonum alaskanum var. glabrescens]
                                                     [Polygonum alaskanum var. glabrescens]
                                             Aconogonon alpinum
                                                   [Aconogonum alpinum]
                                                   [Pleuropteropyrum alpinum]
                                                   [Polygonum alpinum]
                                             Aconogonon campanulatum
                                                   [Polygonum campanulatum]
                                             Aconogonon davisiae
                                                   [Aconogonum davisiae]
                                                   [Polygonum davisiae]
                                               Aconogonon davisiae var. davisiae
                                                     [Aconogonon newberryi]
                                                     [Aconogonum newberryi]
                                                     [Polygonum newberryi]
                                               Aconogonon davisiae var. glabrum
                                                     [Aconogonum davisiae var. glabrum]
                                                     [Polygonum newberryi var. glabrum]
                                             Aconogonon hultenianum
                                             Aconogonon newberryi
                                             Aconogonon phytolaccifolium
                                                   [Aconogonum phytolaccifolium]
                                               Aconogonon phytolaccifolium var. glabrum
                                                     [Aconogonum phytolaccifolium var. glabrum]
                                               Aconogonon phytolaccifolium var. phytolaccifolium
                                                     [Polygonum phytolaccifolium]
                                     Aconogonum
                                             Aconogonum hultenianum
                                             Aconogonum newberryi
                                     Ampelygonum
                                     Antenoron
                                             Antenoron filiforme
                                               Antenoron filiforme var. neofiliforme
                                                     [Antenoron neofiliforme]
                                                     [Persicaria neofiliforme]
                                                     [Persicaria neofiliformis]
                                             Antenoron neofiliforme
                                     Antigonon
                                             Antigonon flavescens
                                             Antigonon guatimalense
                                                   [Antigonon guatemalense]
                                                   [Antigonon macrocarpum]
                                             Antigonon leptopus
                                                   [Corculum leptopum]
                                                   [Corculum leptopus]
                                     Aristocapsa
                                             Aristocapsa insignis
                                                   [Centrostegia insignis]
                                                   [Chorizanthe insignis]
                                                   [Oxytheca insignis]
                                     Bilderdykia
                                     Bistorta
                                             Bistorta bistortoides
                                                   [Persicaria bistortoides]
                                                   [Polygonum bistortoides var. linearifolium]
                                                   [Polygonum bistortoides var. oblongifolium]
                                                   [Polygonum bistortoides]
                                                   [Polygonum cephalophorum]
                                                   [Polygonum glastifolium]
                                                   [Polygonum vulcanicum]
                                             Bistorta officinalis
                                                   [Persicaria bistorta]
                                                   [Polygonum bistorta var. bistorta]
                                                   [Polygonum bistorta]
                                             Bistorta plumosa
                                                   [Polygonum bistorta ssp. plumosum]
                                                   [Polygonum bistorta var. plumosum]
                                                   [Polygonum plumosum]
                                             Bistorta vivipara
                                                   [Persicaria vivipara]
                                                   [Polygonum fugax]
                                                   [Polygonum macounii]
                                                   [Polygonum viviparum var. alpinum]
                                                   [Polygonum viviparum var. macounii]
                                                   [Polygonum viviparum]
                                     Brunnichia
                                             Brunnichia ovata
                                                   [Brunnichia cirrhosa]
                                                   [Rajania ovata]
                                     Calligonum
                                             Calligonum aphyllum
                                             Calligonum caput-medusae
                                             Calligonum leucocladum
                                             Calligonum microcarpum
                                     Centrostegia
                                             Centrostegia thurberi
                                                   [Centrostegia thurberi var. macrotheca]
                                                   [Chorizanthe thurberi var. macrotheca]
                                                   [Chorizanthe thurberi]
                                     Chorizanthe
                                             Chorizanthe angustifolia
                                                   [Chorizanthe angustifolia var. eastwoodiae]
                                             Chorizanthe biloba
                                               Chorizanthe biloba var. biloba
                                                     [Chorizanthe palmeri var. biloba]
                                               Chorizanthe biloba var. immemora
                                             Chorizanthe blakleyi
                                             Chorizanthe brevicornu
                                               Chorizanthe brevicornu var. brevicornu
                                               Chorizanthe brevicornu var. spathulata
                                                     [Chorizanthe brevicornu ssp. spathulata]
                                                     [Chorizanthe spathulata]
                                             Chorizanthe breweri
                                             Chorizanthe clevelandii
                                             Chorizanthe corrugata
                                                   [Acanthogonum corrugatum]
                                             Chorizanthe cuspidata
                                               Chorizanthe cuspidata var. cuspidata
                                                     [Chorizanthe cuspidata var. marginata]
                                               Chorizanthe cuspidata var. villosa
                                                     [Chorizanthe villosa]
                                             Chorizanthe diffusa
                                                   [Chorizanthe diffusa var. nivea]
                                                   [Chorizanthe nivea]
                                                   [Chorizanthe pungens var. nivea]
                                             Chorizanthe douglasii
                                             Chorizanthe fernandina
                                             Chorizanthe fimbriata
                                               Chorizanthe fimbriata var. fimbriata
                                               Chorizanthe fimbriata var. laciniata
                                                     [Chorizanthe laciniata]
                                             Chorizanthe howellii
                                             Chorizanthe laciniata
                                             Chorizanthe leptotheca
                                             Chorizanthe membranacea
                                                   [Eriogonella membranacea]
                                             Chorizanthe obovata
                                             Chorizanthe orcuttiana
                                             Chorizanthe palmeri
                                             Chorizanthe parryi
                                               Chorizanthe parryi var. fernandina
                                                     [Chorizanthe fernandina]
                                               Chorizanthe parryi var. parryi
                                             Chorizanthe polygonoides
                                               Chorizanthe polygonoides var. longispina
                                                     [Acanthogonum polygonoides var. longispinum]
                                                     [Chorizanthe polygonoides ssp. longispina]
                                               Chorizanthe polygonoides var. polygonoides
                                                     [Acanthogonum polygonoides]
                                             Chorizanthe procumbens
                                                   [Chorizanthe jonesiana]
                                                   [Chorizanthe procumbens var. albiflora]
                                                   [Chorizanthe uncinata]
                                             Chorizanthe pungens
                                               Chorizanthe pungens var. hartwegiana
                                               Chorizanthe pungens var. pungens
                                             Chorizanthe rectispina
                                             Chorizanthe rigida
                                                   [Acanthogonum rigidum]
                                             Chorizanthe robusta
                                               Chorizanthe robusta var. hartwegii
                                                     [Chorizanthe douglasii var. hartwegii]
                                                     [Chorizanthe pungens var. hartwegii]
                                               Chorizanthe robusta var. robusta
                                             Chorizanthe spathulata
                                             Chorizanthe spinosa
                                                   [Eriogonella spinosa]
                                             Chorizanthe staticoides
                                                   [Chorizanthe chrysacantha var. compacta]
                                                   [Chorizanthe chrysacantha]
                                                   [Chorizanthe discolor]
                                                   [Chorizanthe staticoides ssp. chrysacantha]
                                                   [Chorizanthe staticoides var. brevispina]
                                                   [Chorizanthe staticoides var. chrysacantha]
                                                   [Chorizanthe staticoides var. elata]
                                                   [Chorizanthe staticoides var. latiloba]
                                             Chorizanthe stellulata
                                             Chorizanthe uniaristata
                                             Chorizanthe valida
                                             Chorizanthe ventricosa
                                                   [Chorizanthe palmeri var. ventricosa]
                                             Chorizanthe villosa
                                             Chorizanthe watsonii
                                             Chorizanthe wheeleri
                                             Chorizanthe xanti
                                               Chorizanthe xanti var. leucotheca
                                                     [Chorizanthe xanti ssp. leucotheca]
                                                     [Chorizanthe xantii ssp. leucotheca]
                                               Chorizanthe xanti var. xanti
                                             Chorizanthe xantii
                                     Coccoloba
                                             Coccoloba buchii
                                             Coccoloba costata
                                                   [Coccoloba rupicola]
                                             Coccoloba diversifolia
                                                   [Coccoloba floridana]
                                                   [Coccoloba laurifolia]
                                             Coccoloba krugii
                                             Coccoloba microstachya
                                                   [Coccoloba obtusifolia]
                                             Coccoloba pallida
                                             Coccoloba pubescens
                                                   [Coccoloba grandifolia]
                                             Coccoloba pyrifolia
                                             Coccoloba rugosa
                                             Coccoloba sintenisii
                                                   [Coccoloba stintenisii]
                                             Coccoloba swartzii
                                                   [Coccoloba borinquensis]
                                                   [Coccoloba swartzii var. portoricensis]
                                             Coccoloba tenuifolia
                                             Coccoloba uvifera
                                                   [Polygonum uvifera]
                                             Coccoloba venosa
                                     Corculum
                                     Dedeckera
                                             Dedeckera eurekensis
                                     Delopyrum
                                     Dentoceras
                                     Dodecahema
                                             Dodecahema leptoceras
                                                   [Centrostegia leptoceras]
                                                   [Centrostegia leptoceris]
                                                   [Chorizanthe leptoceras]
                                                   [Eriogonella leptoceras]
                                     Duravia
                                     Emex
                                             Emex australis
                                             Emex spinosa
                                                   [Rumex spinosus]
                                     Eriogonella
                                     Eriogonum
                                           [Eriogonum carolinae]
                                           [Eriogonum diabolis]
                                           [Eriogonum welshii]
                                             Eriogonum X blissianum
                                             Eriogonum X duchesnense
                                                   [Eriogonum corymbosum var. albogilvum]
                                             Eriogonum X nebraskense
                                                   [Eriogonum nebraskense]
                                                   [Eriogonum pauciflorum var. nebraskense]
                                             Eriogonum abertianum
                                                   [Eriogonum abertianum var. abertianum]
                                                   [Eriogonum abertianum var. cyclosepalum]
                                                   [Eriogonum abertianum var. gillespiei]
                                                   [Eriogonum abertianum var. neomexicanum]
                                                   [Eriogonum abertianum var. villosum]
                                                   [Eriogonum cyclosepalum]
                                             Eriogonum abramsii
                                             Eriogonum acaule
                                                   [Eriogonum caespitosum var. acaule]
                                             Eriogonum alatum
                                               Eriogonum alatum var. alatum
                                                     [Eriogonum alatum ssp. triste]
                                                     [Eriogonum alatum var. mogollense]
                                                     [Eriogonum triste]
                                                     [Pterogonum alatum]
                                               Eriogonum alatum var. glabriusculum
                                             Eriogonum aliquantum
                                             Eriogonum allenii
                                             Eriogonum alpinum
                                             Eriogonum ammophilum
                                                   [Eriogonum nummulare var. ammophilum]
                                             Eriogonum ampullaceum
                                                   [Eriogonum mohavense ssp. ampullaceum]
                                             Eriogonum androsaceum
                                                   [Eriogonum flavum var. androsaceum]
                                             Eriogonum anemophilum
                                                   [Eriogonum ochrocephalum ssp. anemophilum]
                                             Eriogonum angulosum
                                             Eriogonum annuum
                                             Eriogonum apachense
                                             Eriogonum apiculatum
                                             Eriogonum apricum
                                               Eriogonum apricum var. apricum
                                               Eriogonum apricum var. prostratum
                                             Eriogonum arborescens
                                             Eriogonum arcuatum
                                               Eriogonum arcuatum var. arcuatum
                                                     [Eriogonum bakeri]
                                                     [Eriogonum jamesii var. flavescens]
                                                     [Eriogonum jamesii var. higginsii]
                                               Eriogonum arcuatum var. rupicola
                                                     [Eriogonum jamesii var. rupicola]
                                               Eriogonum arcuatum var. xanthum
                                                     [Eriogonum flavum var. xanthum]
                                                     [Eriogonum jamesii var. xanthum]
                                                     [Eriogonum xanthum]
                                             Eriogonum aretioides
                                             Eriogonum argillosum
                                             Eriogonum argophyllum
                                             Eriogonum arizonicum
                                             Eriogonum artificis
                                             Eriogonum atrorubens
                                               Eriogonum atrorubens var. atrorubens
                                             Eriogonum baileyi
                                               Eriogonum baileyi var. baileyi
                                                     [Eriogonum vimineum var. baileyi]
                                               Eriogonum baileyi var. praebens
                                                     [Eriogonum baileyi var. divaricatum]
                                                     [Eriogonum commixtum]
                                                     [Eriogonum praebens]
                                                     [Eriogonum vimineum var. commixtum]
                                             Eriogonum bakeri
                                             Eriogonum barbatum
                                             Eriogonum batemanii
                                                   [Eriogonum batemannii]
                                             Eriogonum beatleyae
                                             Eriogonum bellum
                                             Eriogonum bicolor
                                             Eriogonum bifurcatum
                                             Eriogonum brachyanthum
                                                   [Eriogonum baileyi var. brachyanthum]
                                             Eriogonum brachypodum
                                                   [Eriogonum deflexum var. brachypodum]
                                                   [Eriogonum parryi]
                                             Eriogonum brandegeei
                                             Eriogonum brandegei
                                             Eriogonum breedlovei
                                               Eriogonum breedlovei var. breedlovei
                                                     [Eriogonum ochrocephalum var. breedlovei]
                                               Eriogonum breedlovei var. shevockii
                                             Eriogonum brevicaule
                                               Eriogonum brevicaule var. bannockense
                                                     [Eriogonum chrysocephalum ssp. bannockense]
                                               Eriogonum brevicaule var. brevicaule
                                                     [Eriogonum brevicaule ssp. grangerense]
                                                     [Eriogonum brevicaule var. wasatchense]
                                                     [Eriogonum campanulatum]
                                                     [Eriogonum nudicaule ssp. garrettii]
                                                     [Eriogonum nudicaule ssp. parleyense]
                                                     [Eriogonum wasatchense]
                                               Eriogonum brevicaule var. caelitum
                                               Eriogonum brevicaule var. canum
                                                     [Eriogonum lagopus]
                                                     [Eriogonum multiceps ssp. canum]
                                                     [Eriogonum pauciflorum var. canum]
                                               Eriogonum brevicaule var. cottamii
                                                     [Eriogonum tenellum ssp. cottamii]
                                               Eriogonum brevicaule var. laxifolium
                                                     [Eriogonum brevicaule var. promiscuum]
                                                     [Eriogonum chrysocephalum]
                                                     [Eriogonum grayi]
                                                     [Eriogonum nudicaule ssp. angustum]
                                                     [Eriogonum nudicaule ssp. pumilum]
                                               Eriogonum brevicaule var. micranthum
                                                     [Eriogonum brevicaule ssp. orendense]
                                               Eriogonum brevicaule var. nanum
                                                     [Eriogonum nanum]
                                             Eriogonum butterworthianum
                                             Eriogonum caespitosum
                                                   [Eriogonum sphaerocephalum var. sericoleucum]
                                             Eriogonum callistum
                                             Eriogonum caninum
                                             Eriogonum capillare
                                             Eriogonum cernuum
                                                   [Eriogonum cernuum ssp. tenue]
                                                   [Eriogonum cernuum ssp. viminale]
                                                   [Eriogonum cernuum var. cernum]
                                                   [Eriogonum cernuum var. cernuum]
                                                   [Eriogonum cernuum var. tenue]
                                                   [Eriogonum cernuum var. viminale]
                                             Eriogonum chrysops
                                                   [Eriogonum ovalifolium ssp. chrysops]
                                             Eriogonum cinereum
                                             Eriogonum cithariforme
                                               Eriogonum cithariforme var. agninum
                                                     [Eriogonum gracile var. polygonoides]
                                               Eriogonum cithariforme var. cithariforme
                                                     [Eriogonum gracile var. cithariforme]
                                             Eriogonum clavatum
                                                   [Eriogonum hooveri]
                                                   [Eriogonum trichopes var. hooveri]
                                             Eriogonum clavellatum
                                             Eriogonum clutei
                                             Eriogonum codium
                                             Eriogonum collinum
                                             Eriogonum coloradense
                                             Eriogonum commixtum
                                             Eriogonum compositum
                                               Eriogonum compositum var. compositum
                                               Eriogonum compositum var. lancifolium
                                               Eriogonum compositum var. leianthum
                                                     [Eriogonum umbellatum var. monocephalum]
                                                     [Eriogonum umbellatum var. tolmieanum]
                                             Eriogonum concinnum
                                             Eriogonum congdonii
                                                   [Eriogonum ternatum var. congdonii]
                                             Eriogonum contiguum
                                                   [Eriogonum inflatum var. contiguum]
                                             Eriogonum contortum
                                             Eriogonum correllii
                                             Eriogonum corymbosum
                                               Eriogonum corymbosum var. albiflorum
                                               Eriogonum corymbosum var. atwoodii
                                               Eriogonum corymbosum var. aureum
                                                     [Eriogonum aureum]
                                                     [Eriogonum effusum ssp. nelsonii]
                                               Eriogonum corymbosum var. corymbosum
                                                     [Eriogonum corymbosum var. divaricatum]
                                                     [Eriogonum corymbosum var. erectum]
                                                     [Eriogonum divergens]
                                                     [Eriogonum effusum ssp. durum]
                                                     [Eriogonum effusum ssp. salinum]
                                                     [Eriogonum salinum]
                                               Eriogonum corymbosum var. glutinosum
                                                     [Eriogonum aureum var. glutinosum]
                                                     [Eriogonum microthecum var. crispum]
                                               Eriogonum corymbosum var. heilii
                                               Eriogonum corymbosum var. matthewsae
                                               Eriogonum corymbosum var. matthewsiae
                                               Eriogonum corymbosum var. nilesii
                                               Eriogonum corymbosum var. orbiculatum
                                                     [Eriogonum effusum ssp. orbiculatum]
                                               Eriogonum corymbosum var. revealianum
                                                     [Eriogonum revealianum]
                                               Eriogonum corymbosum var. thompsoniae
                                               Eriogonum corymbosum var. velutinum
                                             Eriogonum covilleanum
                                             Eriogonum crocatum
                                             Eriogonum cronquistii
                                                   [Eriogonum corymbosum var. cronquistii]
                                             Eriogonum crosbyae
                                                   [Eriogonum capistratum var. capistratum]
                                                   [Eriogonum capistratum var. muhlickii]
                                                   [Eriogonum capistratum var. welshii]
                                                   [Eriogonum capistratum]
                                                   [Eriogonum meledonum]
                                                   [Eriogonum ochrocephalum var. alexandrae]
                                                   [Eriogonum verrucosum]
                                             Eriogonum cusickii
                                                   [Eriogonum chrysocephalum ssp. cusickii]
                                             Eriogonum darrovii
                                             Eriogonum dasyanthemum
                                             Eriogonum davidsonii
                                                   [Eriogonum molestum var. davidsonii]
                                                   [Eriogonum vimineum ssp. juncinellum]
                                             Eriogonum deflexum
                                               Eriogonum deflexum var. baratum
                                                     [Eriogonum barbatum]
                                                     [Eriogonum deflexum ssp. baratum]
                                               Eriogonum deflexum var. deflexum
                                                     [Eriogonum clutei]
                                                     [Eriogonum deflexum ssp. insigne]
                                                     [Eriogonum deflexum var. rectum]
                                                     [Eriogonum deflexum var. turbinatum]
                                                     [Eriogonum insigne]
                                                     [Eriogonum turbinatum]
                                               Eriogonum deflexum var. nevadense
                                             Eriogonum dendroideum
                                               Eriogonum dendroideum var. foliosum
                                               Eriogonum dendroideum var. hillmanii
                                             Eriogonum deserticola
                                             Eriogonum desertorum
                                                   [Eriogonum brevicaule var. desertorum]
                                                   [Eriogonum chrysocephalum ssp. desertorum]
                                                   [Eriogonum lewisii]
                                             Eriogonum diatomaceum
                                             Eriogonum diclinum
                                             Eriogonum divaricatum
                                             Eriogonum douglasii
                                               Eriogonum douglasii var. douglasii
                                                     [Eriogonum caespitosum var. douglasii]
                                               Eriogonum douglasii var. elkoense
                                               Eriogonum douglasii var. meridionale
                                             Eriogonum eastwoodianum
                                                   [Eriogonum covilleanum ssp. adsurgens]
                                             Eriogonum effusum
                                                   [Eriogonum effusum var. effusum]
                                                   [Eriogonum microthecum var. effusum]
                                             Eriogonum elatum
                                               Eriogonum elatum var. elatum
                                               Eriogonum elatum var. villosum
                                                     [Eriogonum elatum ssp. villosum]
                                             Eriogonum elegans
                                                   [Eriogonum baileyi ssp. elegans]
                                             Eriogonum elongatum
                                               Eriogonum elongatum var. elongatum
                                             Eriogonum ephedroides
                                                   [Eriogonum brevicaule var. ephedroides]
                                             Eriogonum eremicola
                                             Eriogonum eremicum
                                                   [Eriogonum batemanii var. eremicum]
                                             Eriogonum ericifolium
                                                   [Eriogonum ericifolium var. ericifolium]
                                                   [Eriogonum mearnsii]
                                             Eriogonum esmeraldense
                                               Eriogonum esmeraldense var. esmeraldense
                                               Eriogonum esmeraldense var. toiyabense
                                             Eriogonum evanidum
                                             Eriogonum exaltatum
                                                   [Eriogonum deflexum ssp. exaltatum]
                                             Eriogonum exilifolium
                                             Eriogonum fasciculatum
                                               Eriogonum fasciculatum var. fasciculatum
                                               Eriogonum fasciculatum var. flavoviride
                                                     [Eriogonum fasciculatum ssp. flavoviride]
                                               Eriogonum fasciculatum var. foliolosum
                                                     [Eriogonum fasciculatum ssp. foliolosum]
                                                     [Eriogonum rosmarinifolium var. foliolosum]
                                               Eriogonum fasciculatum var. polifolium
                                                     [Eriogonum fasciculatum ssp. polifolium]
                                                     [Eriogonum fasciculatum var. revolutum]
                                                     [Eriogonum polifolium]
                                             Eriogonum fendlerianum
                                             Eriogonum flavissimum
                                             Eriogonum flavum
                                               Eriogonum flavum ssp. bakeri
                                               Eriogonum flavum var. aquilinum
                                               Eriogonum flavum var. flavum
                                                     [Eriogonum flavum ssp. crassifolium]
                                                     [Eriogonum flavum var. crassifolium]
                                                     [Eriogonum flavum var. linguifolium]
                                                     [Eriogonum flavum var. polyphyllum]
                                                     [Eriogonum polyphyllum]
                                               Eriogonum flavum var. piperi
                                                     [Eriogonum flavum ssp. piperi]
                                                     [Eriogonum piperi]
                                               Eriogonum flavum var. xanthum
                                               Eriogonum flavum ssp. chloranthum
                                               Eriogonum flavum ssp. flavum
                                             Eriogonum floridanum
                                             Eriogonum foliosum
                                             Eriogonum fruticulosum
                                             Eriogonum fusiforme
                                                   [Eriogonum inflatum var. fusiforme]
                                             Eriogonum giganteum
                                               Eriogonum giganteum var. compactum
                                                     [Eriogonum giganteum ssp. compactum]
                                               Eriogonum giganteum var. formosum
                                                     [Eriogonum giganteum ssp. formosum]
                                               Eriogonum giganteum var. giganteum
                                             Eriogonum gilmanii
                                             Eriogonum glandulosum
                                                   [Eriogonum carneum]
                                                   [Eriogonum glandulosum var. carneum]
                                                   [Oxytheca glandulosa]
                                             Eriogonum gordonii
                                             Eriogonum gossypinum
                                             Eriogonum gracile
                                               Eriogonum gracile var. gracile
                                               Eriogonum gracile var. incultum
                                             Eriogonum gracilipes
                                                   [Eriogonum kennedyi ssp. gracilipes]
                                                   [Eriogonum ochrocephalum var. gracilipes]
                                             Eriogonum gracillimum
                                             Eriogonum gramineum
                                             Eriogonum grande
                                               Eriogonum grande var. grande
                                                     [Eriogonum latifolium ssp. grande]
                                               Eriogonum grande var. rubescens
                                                     [Eriogonum grande ssp. rubescens]
                                                     [Eriogonum grande var. dunklei]
                                                     [Eriogonum latifolium var. rubescens]
                                                     [Eriogonum rubescens]
                                               Eriogonum grande var. timorum
                                                     [Eriogonum grande ssp. timorum]
                                             Eriogonum greggii
                                             Eriogonum gypsophilum
                                             Eriogonum harfordii
                                             Eriogonum harperi
                                             Eriogonum hastatum
                                             Eriogonum havardii
                                                   [Eriogonum harvardii]
                                                   [Eriogonum leucophyllum]
                                             Eriogonum heermannii
                                               Eriogonum heermannii var. argense
                                                     [Eriogonum apachense]
                                                     [Eriogonum heermannii ssp. argense]
                                                     [Eriogonum heermannii var. apachense]
                                                     [Eriogonum heermannii var. subracemosum]
                                                     [Eriogonum howellii var. subracemosum]
                                                     [Eriogonum howellii]
                                                     [Eriogonum sulcatum var. argense]
                                               Eriogonum heermannii var. clokeyi
                                               Eriogonum heermannii var. floccosum
                                                     [Eriogonum heermannii ssp. floccosum]
                                               Eriogonum heermannii var. heermannii
                                               Eriogonum heermannii var. humilius
                                                     [Eriogonum heermannii ssp. humilius]
                                               Eriogonum heermannii var. occidentale
                                               Eriogonum heermannii var. subspinosum
                                               Eriogonum heermannii var. sulcatum
                                                     [Eriogonum heermannii ssp. sulcatum]
                                                     [Eriogonum sulcatum]
                                             Eriogonum helichrysoides
                                                   [Eriogonum effusum var. rosmarinoides]
                                             Eriogonum hemipterum
                                               Eriogonum hemipterum var. hemipterum
                                             Eriogonum heracleoides
                                               Eriogonum heracleoides var. heracleoides
                                                     [Eriogonum angustifolium]
                                                     [Eriogonum heracleoides var. angustifolium]
                                                     [Eriogonum heracleoides var. minus]
                                               Eriogonum heracleoides var. leucophaeum
                                             Eriogonum hieraciifolium
                                                   [Eriogonum hieracifolium]
                                                   [Eriogonum pannosum]
                                             Eriogonum hirtellum
                                             Eriogonum hirtiflorum
                                                   [Oxytheca hirtiflora]
                                             Eriogonum hoffmannii
                                               Eriogonum hoffmannii var. hoffmannii
                                               Eriogonum hoffmannii var. robustius
                                                     [Eriogonum hoffmannii ssp. robustius]
                                             Eriogonum holmgrenii
                                             Eriogonum hookeri
                                             Eriogonum howellianum
                                             Eriogonum howellii
                                             Eriogonum hylophilum
                                                   [Eriogonum corymbosum var. hylophilum]
                                             Eriogonum incanum
                                                   [Eriogonum marifolium var. incanum]
                                             Eriogonum inerme
                                               Eriogonum inerme var. hispidulum
                                                     [Eriogonum inerme ssp. hispidulum]
                                               Eriogonum inerme var. inerme
                                                     [Oxytheca inermis]
                                             Eriogonum inflatum
                                                   [Eriogonum inflatum var. deflatum]
                                                   [Eriogonum inflatum var. inflatum]
                                               Eriogonum inflatum var. fusiforme
                                               Eriogonum inflatum var. inflatum
                                             Eriogonum insigne
                                             Eriogonum intrafractum
                                             Eriogonum jamesii
                                               Eriogonum jamesii var. flavescens
                                               Eriogonum jamesii var. higginsii
                                               Eriogonum jamesii var. jamesii
                                               Eriogonum jamesii var. rupicola
                                               Eriogonum jamesii var. simplex
                                               Eriogonum jamesii var. undulatum
                                                     [Eriogonum undulatum]
                                               Eriogonum jamesii var. xanthum
                                             Eriogonum jonesii
                                             Eriogonum kelloggii
                                             Eriogonum kennedyi
                                               Eriogonum kennedyi var. alpigenum
                                                     [Eriogonum kennedyi ssp. alpigenum]
                                               Eriogonum kennedyi var. austromontanum
                                                     [Eriogonum kennedyi ssp. austromontanum]
                                               Eriogonum kennedyi var. kennedyi
                                               Eriogonum kennedyi var. pinicola
                                               Eriogonum kennedyi var. purpusii
                                                     [Eriogonum kennedyi ssp. purpusii]
                                                     [Eriogonum purpusii]
                                             Eriogonum kingii
                                             Eriogonum lachnogynum
                                               Eriogonum lachnogynum var. colobum
                                               Eriogonum lachnogynum var. lachnogynum
                                                     [Eriogonum tetraneuris]
                                               Eriogonum lachnogynum var. sarahiae
                                             Eriogonum lancifolium
                                                   [Eriogonum corymbosum var. davidsei]
                                             Eriogonum latens
                                                   [Eriogonum elatum ssp. glabrescens]
                                                   [Eriogonum monticola]
                                             Eriogonum latifolium
                                             Eriogonum lemmonii
                                             Eriogonum leptocladon
                                               Eriogonum leptocladon var. leptocladon
                                                     [Eriogonum effusum var. shandsii]
                                               Eriogonum leptocladon var. papiliunculi
                                               Eriogonum leptocladon var. ramosissimum
                                                     [Eriogonum ramosissimum]
                                             Eriogonum leptophyllum
                                                   [Eriogonum effusum var. leptophyllum]
                                             Eriogonum libertini
                                             Eriogonum lobbii
                                                   [Eriogonum lobbii var. lobbii]
                                             Eriogonum loganum
                                                   [Eriogonum brevicaule var. loganum]
                                             Eriogonum lonchophyllum
                                                   [Eriogonum ainsliei]
                                                   [Eriogonum corymbosum var. humivagans]
                                                   [Eriogonum fendleranum]
                                                   [Eriogonum fendlerianum]
                                                   [Eriogonum humivagans]
                                                   [Eriogonum intermontanum]
                                                   [Eriogonum lonchophyllum var. fendlerianum]
                                                   [Eriogonum lonchophyllum var. intermontanum]
                                                   [Eriogonum lonchophyllum var. lonchophyllum]
                                                   [Eriogonum lonchophyllum var. nudicaule]
                                                   [Eriogonum lonchophyllum var. saurinum]
                                                   [Eriogonum nudicaule]
                                                   [Eriogonum salicinum]
                                                   [Eriogonum sarothriforme]
                                                   [Eriogonum saurinum]
                                                   [Eriogonum scoparium]
                                                   [Eriogonum tristichum]
                                             Eriogonum longifolium
                                               Eriogonum longifolium var. gnaphalifolium
                                                     [Eriogonum floridanum]
                                               Eriogonum longifolium var. harperi
                                                     [Eriogonum harperi]
                                               Eriogonum longifolium var. longifolium
                                                     [Eriogonum longifolium var. lindheimeri]
                                                     [Eriogonum longifolium var. plantagineum]
                                                     [Eriogonum vespinum]
                                             Eriogonum luteolum
                                               Eriogonum luteolum var. caninum
                                                     [Eriogonum caninum]
                                                     [Eriogonum vimineum var. californicum]
                                                     [Eriogonum vimineum var. caninum]
                                               Eriogonum luteolum var. luteolum
                                               Eriogonum luteolum var. pedunculatum
                                                     [Eriogonum pedunculatum]
                                               Eriogonum luteolum var. saltuarium
                                                     [Eriogonum saltuarium]
                                             Eriogonum maculatum
                                                   [Eriogonum angulosum ssp. maculatum]
                                                   [Eriogonum angulosum var. maculatum]
                                                   [Eriogonum cernuum ssp. acutangulum]
                                             Eriogonum mancum
                                             Eriogonum marifolium
                                               Eriogonum marifolium var. cupulatum
                                               Eriogonum marifolium var. marifolium
                                             Eriogonum mensicola
                                                   [Eriogonum panamintense ssp. mensicola]
                                                   [Eriogonum panamintense var. mensicola]
                                             Eriogonum microthecum
                                               Eriogonum microthecum var. alpinum
                                               Eriogonum microthecum var. ambiguum
                                                     [Eriogonum ambiguum]
                                                     [Eriogonum effusum var. ambiguum]
                                                     [Eriogonum microthecum ssp. ambiguum]
                                                     [Eriogonum microthecum var. expansum]
                                               Eriogonum microthecum var. arceuthinum
                                               Eriogonum microthecum var. corymbosoides
                                               Eriogonum microthecum var. johnstonii
                                               Eriogonum microthecum var. lacus-ursi
                                               Eriogonum microthecum var. lapidicola
                                               Eriogonum microthecum var. laxiflorum
                                                     [Eriogonum microthecum ssp. confertiflorum]
                                                     [Eriogonum microthecum ssp. laxiflorum]
                                                     [Eriogonum microthecum var. confertiflorum]
                                               Eriogonum microthecum var. microthecum
                                                     [Eriogonum microthecum var. idahoense]
                                               Eriogonum microthecum var. panamintense
                                               Eriogonum microthecum var. phoeniceum
                                                     [Eriogonum phoeniceum]
                                               Eriogonum microthecum var. schoolcraftii
                                               Eriogonum microthecum var. simpsonii
                                                     [Eriogonum microthecum ssp. intermedium]
                                                     [Eriogonum microthecum var. foliosum]
                                                     [Eriogonum microthecum var. friscanum]
                                                     [Eriogonum microthecum var. macdougalii]
                                                     [Eriogonum simpsonii]
                                             Eriogonum mitophyllum
                                             Eriogonum mohavense
                                             Eriogonum molestum
                                             Eriogonum molle
                                             Eriogonum mortonianum
                                             Eriogonum multiflorum
                                               Eriogonum multiflorum var. multiflorum
                                               Eriogonum multiflorum var. riograndis
                                             Eriogonum natum
                                                   [Eriogonum spathulatum var. natum]
                                             Eriogonum nealleyi
                                             Eriogonum nervulosum
                                                   [Eriogonum ursinum var. nervulosum]
                                             Eriogonum nidularium
                                                   [Eriogonum vimineum ssp. nidularium]
                                             Eriogonum niveum
                                                   [Eriogonum niveum ssp. decumbens]
                                                   [Eriogonum niveum var. decumbens]
                                                   [Eriogonum niveum var. dichotomum]
                                                   [Eriogonum strictum var. lachnostegium]
                                             Eriogonum nodosum
                                             Eriogonum nortonii
                                             Eriogonum novonudum
                                             Eriogonum nudum
                                               Eriogonum nudum var. auriculatum
                                                     [Eriogonum latifolium ssp. auriculatum]
                                               Eriogonum nudum var. decurrens
                                               Eriogonum nudum var. deductum
                                                     [Eriogonum latifolium ssp. deductum]
                                                     [Eriogonum latifolium var. deductum]
                                               Eriogonum nudum var. indictum
                                                     [Eriogonum latifolium ssp. indictum]
                                                     [Eriogonum latifolium var. indictum]
                                               Eriogonum nudum var. murinum
                                               Eriogonum nudum var. nudum
                                                     [Eriogonum latifolium ssp. nudum]
                                               Eriogonum nudum var. oblongifolium
                                                     [Eriogonum harfordii]
                                                     [Eriogonum latifolium ssp. sulphureum]
                                               Eriogonum nudum var. paralinum
                                               Eriogonum nudum var. pauciflorum
                                                     [Eriogonum latifolium ssp. pauciflorum]
                                                     [Eriogonum nudum ssp. pauciflorum]
                                               Eriogonum nudum var. psychicola
                                               Eriogonum nudum var. pubiflorum
                                               Eriogonum nudum var. regirivum
                                               Eriogonum nudum var. scapigerum
                                                     [Eriogonum latifolium var. scapigerum]
                                                     [Eriogonum scapigerum]
                                               Eriogonum nudum var. westonii
                                                     [Eriogonum gramineum]
                                                     [Eriogonum latifolium ssp. saxicola]
                                                     [Eriogonum nudum ssp. saxicola]
                                                     [Eriogonum nudum var. gramineum]
                                                     [Eriogonum nudum var. saxicola]
                                             Eriogonum nummulare
                                                   [Eriogonum dudleyanum]
                                                   [Eriogonum kearneyi ssp. monoense]
                                                   [Eriogonum kearneyi var. monoense]
                                                   [Eriogonum kearneyi]
                                                   [Eriogonum nodosum ssp. monoense]
                                                   [Eriogonum nodosum var. kearneyi]
                                             Eriogonum nutans
                                               Eriogonum nutans var. glabratum
                                               Eriogonum nutans var. nutans
                                                     [Eriogonum deflexum ssp. ultrum]
                                                     [Eriogonum nutans var. brevipedicellatum]
                                             Eriogonum ochrocephalum
                                               Eriogonum ochrocephalum var. calcareum
                                                     [Eriogonum ochrocephalum ssp. calcareum]
                                                     [Eriogonum ochrocephalum var. sceptrum]
                                               Eriogonum ochrocephalum var. ochrocephalum
                                             Eriogonum ordii
                                             Eriogonum ostlundii
                                                   [Eriogonum batemanii var. ostlundii]
                                                   [Eriogonum spathuiforme]
                                                   [Eriogonum spathulatum ssp. spathuiforme]
                                             Eriogonum ovalifolium
                                               Eriogonum ovalifolium ssp. flavissimum
                                               Eriogonum ovalifolium var. caelestinum
                                               Eriogonum ovalifolium var. depressum
                                               Eriogonum ovalifolium var. eximium
                                                     [Eriogonum ovalifolium ssp. eximium]
                                               Eriogonum ovalifolium var. monarchense
                                               Eriogonum ovalifolium var. nivale
                                                     [Eriogonum nivale]
                                                     [Eriogonum rhodanthum]
                                               Eriogonum ovalifolium var. ochroleucum
                                                     [Eriogonum ochroleucum]
                                                     [Eriogonum ovalifolium ssp. ochroleucum]
                                                     [Eriogonum ovalifolium var. macropodum]
                                               Eriogonum ovalifolium var. ovalifolium
                                                     [Eriogonum ovalifolium var. multiscapum]
                                                     [Eriogonum ovalifolium var. nevadense]
                                               Eriogonum ovalifolium var. pansum
                                               Eriogonum ovalifolium var. purpureum
                                                     [Eriogonum davisianum]
                                                     [Eriogonum ovalifolium var. celsum]
                                                     [Eriogonum ovalifolium var. orthocaulon]
                                               Eriogonum ovalifolium var. vineum
                                                     [Eriogonum ovalifolium ssp. vineum]
                                               Eriogonum ovalifolium var. williamsiae
                                             Eriogonum palmerianum
                                                   [Eriogonum baileyi var. tomentosum]
                                                   [Eriogonum palmeranum]
                                             Eriogonum panamintense
                                                   [Eriogonum panamintense var. panamintense]
                                                   [Eriogonum racemosum var. desertorum]
                                             Eriogonum panguicense
                                               Eriogonum panguicense var. alpestre
                                                     [Eriogonum chrysocephalum ssp. alpestre]
                                               Eriogonum panguicense var. panguicense
                                                     [Eriogonum spathulatum var. panguicense]
                                             Eriogonum parishii
                                             Eriogonum parvifolium
                                                   [Eriogonum parvifolium ssp. lucidum]
                                                   [Eriogonum parvifolium ssp. paynei]
                                                   [Eriogonum parvifolium var. lucidum]
                                                   [Eriogonum parvifolium var. paynei]
                                             Eriogonum pauciflorum
                                                   [Eriogonum depauperatum]
                                                   [Eriogonum multiceps]
                                                   [Eriogonum pauciflorum var. gnaphalodes]
                                                   [Eriogonum pauciflorum var. pauciflorum]
                                               Eriogonum pauciflorum var. gnaphalodes
                                               Eriogonum pauciflorum var. var pauciflorum
                                             Eriogonum pedunculatum
                                             Eriogonum pelinophilum
                                             Eriogonum pendulum
                                             Eriogonum pharnaceoides
                                               Eriogonum pharnaceoides var. cervinum
                                               Eriogonum pharnaceoides var. pharnaceoides
                                             Eriogonum plumatella
                                                   [Eriogonum plumatella var. jaegeri]
                                             Eriogonum polifolium
                                             Eriogonum polycladon
                                                   [Eriogonum densum]
                                                   [Eriogonum vimineum var. densum]
                                             Eriogonum polypodum
                                             Eriogonum praebens
                                             Eriogonum prattenianum
                                               Eriogonum prattenianum var. avium
                                               Eriogonum prattenianum var. prattenianum
                                             Eriogonum pringlei
                                             Eriogonum prociduum
                                               Eriogonum prociduum var. mysterium
                                               Eriogonum prociduum var. prociduum
                                             Eriogonum proliferum
                                             Eriogonum puberulum
                                             Eriogonum pulchrum
                                                   [Eriogonum ericifolium var. pulchrum]
                                                   [Eriogonum mearnsii var. pulchrum]
                                             Eriogonum purpusii
                                             Eriogonum pusillum
                                                   [Eriogonum reniforme ssp. pusillum]
                                             Eriogonum pyrolifolium
                                               Eriogonum pyrolifolium var. coryphaeum
                                                     [Eriogonum pyrolifolium var. bellingerianum]
                                               Eriogonum pyrolifolium var. pyrolifolium
                                             Eriogonum racemosum
                                                   [Eriogonum racemosum var. racemosum]
                                               Eriogonum racemosum var. coccineum
                                               Eriogonum racemosum var. nobile
                                               Eriogonum racemosum var. zionis
                                             Eriogonum reniforme
                                                   [Eriogonum reniforme var. comosum]
                                             Eriogonum ripleyi
                                             Eriogonum rixfordii
                                                   [Eriogonum deflexum ssp. rixfordii]
                                             Eriogonum robustum
                                                   [Eriogonum lobbii var. robustum]
                                             Eriogonum rosense
                                               Eriogonum rosense var. beatleyae
                                                     [Eriogonum beatleyae]
                                               Eriogonum rosense var. rosense
                                                     [Eriogonum ochrocephalum ssp. agnellum]
                                             Eriogonum roseum
                                                   [Eriogonum virgatum]
                                             Eriogonum rosmarinifolium
                                             Eriogonum rotundifolium
                                             Eriogonum rubescens
                                             Eriogonum rubricaule
                                             Eriogonum rupinum
                                             Eriogonum salicornioides
                                             Eriogonum saltuarium
                                             Eriogonum saurinum
                                             Eriogonum saxatile
                                             Eriogonum scabrellum
                                             Eriogonum scapigerum
                                             Eriogonum scopulorum
                                             Eriogonum shockleyi
                                                   [Eriogonum shockleyi ssp. candidum]
                                                   [Eriogonum shockleyi ssp. longilobum]
                                                   [Eriogonum shockleyi var. longilobum]
                                                   [Eriogonum shockleyi var. packardiae]
                                                   [Eriogonum shockleyi var. shockleyi]
                                               Eriogonum shockleyi var. longilobum
                                             Eriogonum siskiyouense
                                             Eriogonum smithii
                                                   [Eriogonum corymbosum var. smithii]
                                             Eriogonum soliceps
                                             Eriogonum soredium
                                             Eriogonum spathulatum
                                                   [Eriogonum nudicaule ssp. ochroflorum]
                                             Eriogonum spectabile
                                             Eriogonum spergulinum
                                               Eriogonum spergulinum var. pratense
                                               Eriogonum spergulinum var. reddingianum
                                                     [Eriogonum spergulinum ssp. reddingianum]
                                               Eriogonum spergulinum var. spergulinum
                                                     [Oxytheca spergulina]
                                                     [Oxytheca spergulinum]
                                             Eriogonum sphaerocephalum
                                               Eriogonum sphaerocephalum var. fasciculifolium
                                               Eriogonum sphaerocephalum var. halimioides
                                                     [Eriogonum fruticulosum]
                                               Eriogonum sphaerocephalum var. sphaerocephalum
                                                     [Eriogonum sphaerocephalum var. brevifolium]
                                                     [Eriogonum sphaerocephalum var. geniculatum]
                                                     [Eriogonum sphaerocephalum var. megacephalum]
                                               Eriogonum sphaerocephalum var. sublineare
                                                     [Eriogonum douglasii var. sublineare]
                                                     [Eriogonum douglasii var. tenue]
                                                     [Eriogonum strictum var. tenue]
                                                     [Eriogonum tenue]
                                             Eriogonum strictum
                                               Eriogonum strictum var. anserinum
                                                     [Eriogonum flavissimum]
                                                     [Eriogonum ovalifolium ssp. flavissimum]
                                                     [Eriogonum proliferum ssp. anserinum]
                                                     [Eriogonum strictum var. flavissimum]
                                               Eriogonum strictum var. greenei
                                               Eriogonum strictum var. proliferum
                                                     [Eriogonum bellum]
                                                     [Eriogonum proliferum]
                                                     [Eriogonum strictum ssp. proliferum]
                                                     [Eriogonum strictum var. cusickii]
                                               Eriogonum strictum var. strictum
                                                     [Eriogonum strictum ssp. strictum]
                                             Eriogonum subalpinum
                                             Eriogonum subreniforme
                                                   [Eriogonum filicaule]
                                             Eriogonum suffruticosum
                                             Eriogonum sulcatum
                                             Eriogonum temblorense
                                             Eriogonum tenellum
                                               Eriogonum tenellum var. platyphyllum
                                                     [Eriogonum platyphyllum]
                                               Eriogonum tenellum var. ramosissimum
                                                     [Eriogonum graniticum]
                                                     [Eriogonum tenellum var. caulescens]
                                                     [Eriogonum tenellum var. ramosissinum]
                                               Eriogonum tenellum var. tenellum
                                             Eriogonum tenue
                                             Eriogonum ternatum
                                             Eriogonum terrenatum
                                             Eriogonum thomasii
                                             Eriogonum thompsonae
                                             Eriogonum thompsoniae
                                               Eriogonum thompsoniae var. albiflorum
                                                     [Eriogonum corymbosum var. albiflorum]
                                                     [Eriogonum corymbosum var. matthewsae]
                                                     [Eriogonum corymbosum var. matthewsiae]
                                                     [Eriogonum thompsonae var. albiflorum]
                                                     [Eriogonum thompsoniae var. matthewsiae]
                                               Eriogonum thompsoniae var. atwoodii
                                                     [Eriogonum corymbosum var. atwoodii]
                                                     [Eriogonum thompsonae var. atwoodii]
                                               Eriogonum thompsoniae var. thompsoniae
                                                     [Eriogonum corymbosum var. thompsoniae]
                                                     [Eriogonum thompsonae var. thompsonae]
                                             Eriogonum thornei
                                                   [Eriogonum ericifolium ssp. thornei]
                                                   [Eriogonum ericifolium var. thornei]
                                             Eriogonum thurberi
                                             Eriogonum thymoides
                                                   [Eriogonum sphaerocephalum var. minimum]
                                                   [Eriogonum thymoides ssp. congestum]
                                             Eriogonum tiehmii
                                             Eriogonum tomentosum
                                             Eriogonum trichopes
                                                   [Eriogonum trichopes ssp. minus]
                                                   [Eriogonum trichopes var. trichopes]
                                             Eriogonum tripodum
                                             Eriogonum triste
                                             Eriogonum truncatum
                                             Eriogonum tumulosum
                                                   [Eriogonum villiflorum var. tumulosum]
                                             Eriogonum turbinatum
                                             Eriogonum twisselmannii
                                             Eriogonum umbellatum
                                               Eriogonum umbellatum var. ahartii
                                               Eriogonum umbellatum var. argus
                                               Eriogonum umbellatum var. aureum
                                                     [Eriogonum umbellatum var. intectum]
                                               Eriogonum umbellatum var. bahiiforme
                                                     [Eriogonum umbellatum ssp. bahiiforme]
                                               Eriogonum umbellatum var. canifolium
                                               Eriogonum umbellatum var. chlorothamnus
                                               Eriogonum umbellatum var. cladophorum
                                               Eriogonum umbellatum var. cognatum
                                                     [Eriogonum cognatum]
                                               Eriogonum umbellatum var. covillei
                                                     [Eriogonum covillei]
                                                     [Eriogonum umbellatum ssp. covillei]
                                               Eriogonum umbellatum var. desereticum
                                                     [Eriogonum umbellatum var. deserticum]
                                               Eriogonum umbellatum var. devestivum
                                               Eriogonum umbellatum var. dichrocephalum
                                                     [Eriogonum umbellatum ssp. aridum]
                                                     [Eriogonum umbellatum var. aridum]
                                               Eriogonum umbellatum var. dumosum
                                                     [Eriogonum umbellatum ssp. dumosum]
                                               Eriogonum umbellatum var. ellipticum
                                                     [Eriogonum stellatum]
                                                     [Eriogonum umbellatum ssp. stellatum]
                                                     [Eriogonum umbellatum var. chrysanthum]
                                                     [Eriogonum umbellatum var. croceum]
                                                     [Eriogonum umbellatum var. stellatum]
                                               Eriogonum umbellatum var. furcosum
                                               Eriogonum umbellatum var. glaberrimum
                                               Eriogonum umbellatum var. goodmanii
                                               Eriogonum umbellatum var. hausknechtii
                                               Eriogonum umbellatum var. humistratum
                                               Eriogonum umbellatum var. hypoleium
                                               Eriogonum umbellatum var. juniporinum
                                               Eriogonum umbellatum var. lautum
                                               Eriogonum umbellatum var. majus
                                                     [Eriogonum heracleoides var. subalpinum]
                                                     [Eriogonum subalpinum]
                                                     [Eriogonum umbellatum ssp. majus]
                                                     [Eriogonum umbellatum var. subalpinum]
                                               Eriogonum umbellatum var. minus
                                                     [Eriogonum umbellatum ssp. minus]
                                               Eriogonum umbellatum var. modocense
                                               Eriogonum umbellatum var. mohavense
                                               Eriogonum umbellatum var. monocephalum
                                               Eriogonum umbellatum var. munzii
                                                     [Eriogonum umbellatum ssp. munzii]
                                               Eriogonum umbellatum var. nelsoniorum
                                               Eriogonum umbellatum var. nevadense
                                               Eriogonum umbellatum var. polyanthum
                                                     [Eriogonum polyanthum]
                                                     [Eriogonum umbellatum ssp. polyanthum]
                                               Eriogonum umbellatum var. porteri
                                               Eriogonum umbellatum var. ramulosum
                                               Eriogonum umbellatum var. sandbergii
                                               Eriogonum umbellatum var. smallianum
                                               Eriogonum umbellatum var. speciosum
                                               Eriogonum umbellatum var. stragulum
                                               Eriogonum umbellatum var. subaridum
                                                     [Eriogonum umbellatum ssp. ferrissii]
                                                     [Eriogonum umbellatum ssp. subaridum]
                                               Eriogonum umbellatum var. tolmieanum
                                               Eriogonum umbellatum var. torreyanum
                                                     [Eriogonum torreyanum]
                                               Eriogonum umbellatum var. umbellatum
                                               Eriogonum umbellatum var. vernum
                                               Eriogonum umbellatum var. versicolor
                                                     [Eriogonum umbellatum ssp. versicolor]
                                               Eriogonum umbellatum ssp. subaridum
                                             Eriogonum ursinum
                                               Eriogonum ursinum var. erubescens
                                               Eriogonum ursinum var. ursinum
                                             Eriogonum vespinum
                                             Eriogonum vestitum
                                             Eriogonum villiflorum
                                             Eriogonum vimineum
                                                   [Eriogonum vimineum var. luteolum]
                                                   [Eriogonum vimineum var. shoshonense]
                                             Eriogonum viridescens
                                                   [Eriogonum angulosum ssp. viridescens]
                                                   [Eriogonum bidentatum]
                                             Eriogonum viridulum
                                                   [Eriogonum brevicaule var. viridulum]
                                             Eriogonum viscidulum
                                             Eriogonum visheri
                                             Eriogonum watsonii
                                                   [Eriogonum deflexum ssp. watsonii]
                                                   [Eriogonum deflexum var. multipedunculatum]
                                                   [Eriogonum deflexum var. watsonii]
                                             Eriogonum wetherillii
                                                   [Eriogonum sessile]
                                             Eriogonum wootonii
                                                   [Eriogonum jamesii var. wootonii]
                                             Eriogonum wrightii
                                               Eriogonum wrightii var. membranaceum
                                                     [Eriogonum wrightii ssp. membranaceum]
                                               Eriogonum wrightii var. nodosum
                                                     [Eriogonum nodosum]
                                                     [Eriogonum pringlei]
                                                     [Eriogonum wrightii ssp. nodosum]
                                                     [Eriogonum wrightii var. pringlei]
                                               Eriogonum wrightii var. olanchense
                                               Eriogonum wrightii var. subscaposum
                                                     [Eriogonum wrightii ssp. subscaposum]
                                               Eriogonum wrightii var. trachygonum
                                                     [Eriogonum wrightii ssp. trachygonum]
                                               Eriogonum wrightii var. wrightii
                                                     [Eriogonum wrightii ssp. glomerulum]
                                             Eriogonum x X duchesnense
                                             Eriogonum xanthum
                                             Eriogonum zionis
                                               Eriogonum zionis var. coccineum
                                                     [Eriogonum racemosum var. coccineum]
                                               Eriogonum zionis var. zionis
                                                     [Eriogonum racemosum var. nobile]
                                                     [Eriogonum racemosum var. zionis]
                                     Fagopyrum
                                             Fagopyrum esculentum
                                                   [Fagopyrum fagopyrum]
                                                   [Fagopyrum sagittatum]
                                                   [Fagopyrum vulgare]
                                                   [Polygonum fagopyrum]
                                             Fagopyrum tataricum
                                                   [Polygonum tataricum]
                                     Fallopia
                                             Fallopia X bohemica
                                                   [Polygonum X bohemicum]
                                             Fallopia aubertii
                                             Fallopia baldschuanica
                                                   [Bilderdykia aubertii]
                                                   [Bilderdykia baldschuanica]
                                                   [Fallopia aubertii]
                                                   [Polygonum aubertii]
                                                   [Polygonum baldschuanicum]
                                                   [Reynoutria baldschuanica]
                                             Fallopia cilinodis
                                                   [Bilderdykia cilinodis var. laevigata]
                                                   [Bilderdykia cilinodis]
                                                   [Polygonum cilinode var. laevigatum]
                                                   [Polygonum cilinode]
                                                   [Reynoutria cilinodis]
                                                   [Tiniaria cilinodis]
                                             Fallopia convolvulus
                                                   [Bilderdykia convolvulus]
                                                   [Polygonum convolvulus var. convolvulus]
                                                   [Polygonum convolvulus var. subulatum]
                                                   [Polygonum convolvulus]
                                                   [Reynoutria convolvulus]
                                                   [Tiniaria convolvulus]
                                             Fallopia dumetorum
                                                   [Bilderdykia dumetorum]
                                                   [Polygonum dumetorum]
                                                   [Polygonum scandens var. dumetorum]
                                                   [Reynoutria scandens var. dumetorum]
                                                   [Tiniaria dumetorum]
                                             Fallopia japonica
                                               Fallopia japonica var. japonica
                                                     [Pleuropterus cuspidatus]
                                                     [Pleuropterus zuccarinii]
                                                     [Polygonum cuspidatum var. compactum]
                                                     [Polygonum cuspidatum]
                                                     [Polygonum zuccarinii]
                                                     [Reynoutria japonica]
                                             Fallopia multiflora
                                                   [Polygonum multiflorum]
                                             Fallopia sachalinensis
                                                   [Polygonum sachalinense]
                                                   [Reynoutria sachalinensis]
                                             Fallopia scandens
                                                   [Bilderdykia cristata]
                                                   [Bilderdykia scandens var. cristata]
                                                   [Bilderdykia scandens]
                                                   [Polygonum cristatum]
                                                   [Polygonum dumetorum var. scandens]
                                                   [Polygonum scandens var. cristatum]
                                                   [Polygonum scandens var. scandens]
                                                   [Polygonum scandens]
                                                   [Reynoutria scandens var. cristata]
                                                   [Reynoutria scandens]
                                                   [Tiniaria cristata]
                                                   [Tiniaria scandens]
                                     Gilmania
                                             Gilmania luteola
                                     Gonopyrum
                                     Goodmania
                                             Goodmania luteola
                                                   [Oxytheca luteola]
                                     Hollisteria
                                             Hollisteria lanata
                                     Homalocladium
                                             Homalocladium platycladum
                                                   [Muehlenbeckia platyclada]
                                     Johanneshowellia
                                             Johanneshowellia crateriorum
                                             Johanneshowellia puberula
                                                   [Eriogonum puberulum var. venosum]
                                                   [Eriogonum puberulum]
                                     Koenigia
                                             Koenigia islandica
                                                   [Macounastrum islandicum]
                                     Lastarriaea
                                             Lastarriaea coriacea
                                                   [Chorizanthe coriacea]
                                                   [Chorizanthe lastarriaea]
                                                   [Lastarriaea chilensis]
                                     Macounastrum
                                     Mucronea
                                             Mucronea californica
                                                   [Chorizanthe californica var. suksdorfii]
                                                   [Chorizanthe californica]
                                                   [Mucronea californica var. suksdorfii]
                                             Mucronea perfoliata
                                                   [Chorizanthe perfoliata var. opaca]
                                                   [Chorizanthe perfoliata]
                                                   [Mucronea perfoliata var. opaca]
                                     Muehlenbeckia
                                             Muehlenbeckia axillaris
                                             Muehlenbeckia complexa
                                             Muehlenbeckia hastulata
                                                   [Muehlenbeckia hastatula]
                                               Muehlenbeckia hastulata var. hastulata
                                     Nemacaulis
                                             Nemacaulis denudata
                                               Nemacaulis denudata var. denudata
                                               Nemacaulis denudata var. gracilis
                                     Oxyria
                                             Oxyria digyna
                                                   [Rumex digyna]
                                                   [Rumex digynus]
                                     Oxytheca
                                             Oxytheca abramsii
                                             Oxytheca dendroidea
                                               Oxytheca dendroidea ssp. dendroidea
                                                     [Eriogonum dendroideum var. foliosum]
                                                     [Eriogonum dendroideum var. hillmanii]
                                                     [Eriogonum dendroideum]
                                                     [Oxytheca foliosa]
                                             Oxytheca foliosa
                                             Oxytheca perfoliata
                                             Oxytheca watsonii
                                     Persicaria
                                             Persicaria amphibia
                                                   [Persicaria amphibia var. emersa]
                                                   [Persicaria amphibia var. stipulacea]
                                                   [Persicaria coccinea]
                                                   [Persicaria mesochora]
                                                   [Persicaria muehlenbergii]
                                                   [Persicaria muhlenbergii]
                                                   [Persicaria nebraskensis]
                                                   [Polygonum amphibium ssp. laevimarginatum]
                                                   [Polygonum amphibium var. coccineum]
                                                   [Polygonum amphibium var. emersum]
                                                   [Polygonum amphibium var. hartwrightii]
                                                   [Polygonum amphibium var. stipulaceum]
                                                   [Polygonum amphibium]
                                                   [Polygonum coccineum var. pratincola]
                                                   [Polygonum coccineum var. rigidulum]
                                                   [Polygonum coccineum var. terrestre]
                                                   [Polygonum coccineum]
                                                   [Polygonum fluitans]
                                                   [Polygonum hartwrightii]
                                                   [Polygonum inundatum]
                                                   [Polygonum muehlenbergii var. terrestre]
                                                   [Polygonum muehlenbergii]
                                                   [Polygonum muhlenbergii var. terrestre]
                                                   [Polygonum muhlenbergii]
                                                   [Polygonum natans]
                                             Persicaria arifolia
                                                   [Polygonum arifolium var. lentiforme]
                                                   [Polygonum arifolium var. pubescens]
                                                   [Polygonum arifolium]
                                                   [Tracaulon arifolium]
                                             Persicaria bicornis
                                                   [Persicaria longistyla]
                                                   [Polygonum bicorne]
                                                   [Polygonum longistylum var. omissum]
                                                   [Polygonum longistylum]
                                             Persicaria bungeana
                                                   [Polygonum bungeanum]
                                             Persicaria capitata
                                                   [Polygonum capitatum]
                                             Persicaria careyi
                                                   [Polygonum careyi]
                                             Persicaria chinensis
                                                   [Polygonum chinense]
                                             Persicaria coccinea
                                             Persicaria decipiens
                                                   [Polygonum salicifolium]
                                             Persicaria glabra
                                                   [Persicaria densiflora]
                                                   [Persicaria portoricensis]
                                                   [Polygonum densiflorum]
                                                   [Polygonum portoricense]
                                             Persicaria hirsuta
                                                   [Polygonum hirsutum]
                                             Persicaria hydropiper
                                                   [Polygonum hydropiper var. projectum]
                                                   [Polygonum hydropiper]
                                             Persicaria hydropiperoides
                                                   [Persicaria hydropiperoides var. breviciliata]
                                                   [Persicaria hydropiperoides var. euronotora]
                                                   [Persicaria hydropiperoides var. opelousana]
                                                   [Persicaria opelousana]
                                                   [Persicaria paludicola]
                                                   [Persicaria persicarioides]
                                                   [Polygonum hydropiperoides var. adenocalyx]
                                                   [Polygonum hydropiperoides var. asperifolium]
                                                   [Polygonum hydropiperoides var. breviciliatum]
                                                   [Polygonum hydropiperoides var. bushianum]
                                                   [Polygonum hydropiperoides var. digitatum]
                                                   [Polygonum hydropiperoides var. euronotorum]
                                                   [Polygonum hydropiperoides var. hydropiperoides]
                                                   [Polygonum hydropiperoides var. opelousanum]
                                                   [Polygonum hydropiperoides var. psilostachyum]
                                                   [Polygonum hydropiperoides var. strigosum]
                                                   [Polygonum hydropiperoides]
                                                   [Polygonum opelousanum var. adenocalyx]
                                                   [Polygonum opelousanum]
                                                   [Polygonum persicarioides]
                                                   [Polyonum hydropiperoides var. hydropiperoides]
                                                   [Polyonum hydropiperoides var. opalousanum]
                                                   [Polyonum hydropiperoides]
                                             Persicaria lapathifolia
                                                   [Persicaria incarnata]
                                                   [Persicaria tomentosa]
                                                   [Polygonum incanum]
                                                   [Polygonum incarnatum]
                                                   [Polygonum lapathifolium ssp. pallidum]
                                                   [Polygonum lapathifolium var. incanum]
                                                   [Polygonum lapathifolium var. lapathifolium]
                                                   [Polygonum lapathifolium var. ovatum]
                                                   [Polygonum lapathifolium var. prostratum]
                                                   [Polygonum lapathifolium var. salicifolium]
                                                   [Polygonum lapathifolium]
                                                   [Polygonum oneillii]
                                                   [Polygonum pensylvanicum ssp. oneillii]
                                                   [Polygonum scabrum]
                                                   [Polygonum tomentosum]
                                             Persicaria longiseta
                                                   [Persicaria caespitosa var. longiseta]
                                                   [Polygonum caespitosum var. longisetum]
                                                   [Polygonum cespitosum var. longisetum]
                                                   [Polygonum longisetum]
                                             Persicaria maculata
                                             Persicaria maculosa
                                                   [Persicaria maculata]
                                                   [Persicaria persicaria]
                                                   [Persicaria ruderalis var. vulgaris]
                                                   [Persicaria ruderalis]
                                                   [Persicaria vulgaris]
                                                   [Polygonum dubium]
                                                   [Polygonum fusiforme]
                                                   [Polygonum persicaria var. angustifolium]
                                                   [Polygonum persicaria var. ruderale]
                                                   [Polygonum persicaria]
                                             Persicaria meisneriana
                                                   [Polygonum meisneranum]
                                                   [Polygonum meisnerianum]
                                               Persicaria meisneriana var. beyrichiana
                                                     [Polygonum beyrichianum]
                                                     [Polygonum meisnerianum var. beyrichianum]
                                             Persicaria minor
                                                   [Polygonum minus var. minus]
                                                   [Polygonum minus var. subcontinuum]
                                             Persicaria neofiliforme
                                             Persicaria neofiliformis
                                             Persicaria nepalensis
                                                   [Polygonum alatum]
                                                   [Polygonum nepalense]
                                             Persicaria nodosa
                                                   [Polygonum lapathifolium var. nodosum]
                                                   [Polygonum nodosum]
                                             Persicaria orientalis
                                                   [Polygonum orientale]
                                                   [Polygonum spaethii]
                                             Persicaria pensylvanica
                                                   [Persicaria mississippiensis]
                                                   [Persicaria pensylvanica var. dura]
                                                   [Polygonum mexicanum]
                                                   [Polygonum mississippiense var. interius]
                                                   [Polygonum mississippiense]
                                                   [Polygonum pensylvanicum var. durum]
                                                   [Polygonum pensylvanicum var. eglandulosum]
                                                   [Polygonum pensylvanicum var. genuinum]
                                                   [Polygonum pensylvanicum var. laevigatum]
                                                   [Polygonum pensylvanicum var. rosiflorum]
                                                   [Polygonum pensylvanicum]
                                             Persicaria perfoliata
                                                   [Ampelygonum perfoliatum]
                                                   [Polygonum perfoliatum]
                                             Persicaria posumbu
                                                   [Persicaria caespitosa]
                                                   [Polygonum caespitosum var. caespitosum]
                                                   [Polygonum caespitosum]
                                                   [Polygonum cespitosum var. cespitosum]
                                                   [Polygonum cespitosum]
                                             Persicaria punctata
                                                   [Persicaria punctata var. eciliata]
                                                   [Persicaria punctata var. leptostachya]
                                                   [Polygonum acre]
                                                   [Polygonum punctatum var. aquatile]
                                                   [Polygonum punctatum var. confertiflorum]
                                                   [Polygonum punctatum var. ellipticum]
                                                   [Polygonum punctatum var. leptostachyum]
                                                   [Polygonum punctatum var. parviflorum]
                                                   [Polygonum punctatum var. parvum]
                                                   [Polygonum punctatum var. punctatum]
                                                   [Polygonum punctatum]
                                             Persicaria puritanorum
                                                   [Polygonum puritanorum]
                                             Persicaria robustior
                                                   [Polygonum punctatum var. majus]
                                                   [Polygonum punctatum var. robustius]
                                                   [Polygonum robustius]
                                             Persicaria sagittata
                                                   [Polygonum sagittatum var. gracilentum]
                                                   [Polygonum sagittatum]
                                                   [Tracaulon sagittatum var. gracilentum]
                                                   [Tracaulon sagittatum]
                                                   [Truellum sagittatum]
                                             Persicaria setacea
                                                   [Persicaria setacea var. interjecta]
                                                   [Persicaria setacea var. tonsa]
                                                   [Polygonum hydropiperoides var. setaceum]
                                                   [Polygonum setaceum var. interjectum]
                                                   [Polygonum setaceum var. setaceum]
                                                   [Polygonum setaceum var. tonsum]
                                                   [Polygonum setaceum]
                                             Persicaria virginiana
                                                   [Antenoron virginianum]
                                                   [Polygonum virginianum var. glaberrimum]
                                                   [Polygonum virginianum]
                                                   [Tovara virginiana var. glaberrima]
                                                   [Tovara virginiana]
                                             Persicaria wallichii
                                               Persicaria wallichii var. wallichii
                                                     [Aconogonon polystachyum]
                                                     [Aconogonum polystachyum]
                                                     [Polygonum polystachyum]
                                     Pleuropteropyrum
                                     Pleuropterus
                                     Polygonella
                                             Polygonella americana
                                                   [Gonopyrum americanum]
                                             Polygonella articulata
                                                   [Delopyrum articulatum]
                                                   [Polygonum articulatum]
                                             Polygonella basiramia
                                                   [Delopyrum basiramia]
                                                   [Delopyrum basiramium]
                                                   [Polygonella ciliata var. basiramia]
                                             Polygonella brachystachya
                                             Polygonella ciliata
                                                   [Delopyrum ciliatum]
                                             Polygonella croomii
                                             Polygonella fimbriata
                                                   [Polygonum fimbriatum]
                                                   [Thysanella fimbriata]
                                             Polygonella gracilis
                                                   [Delopyrum filiforme]
                                                   [Delopyrum gracile]
                                                   [Polygonum gracile]
                                             Polygonella macrophylla
                                             Polygonella myriophylla
                                                   [Dentoceras myriophylla]
                                             Polygonella parksii
                                             Polygonella polygama
                                               Polygonella polygama var. brachystachya
                                                     [Polygonella brachystachya]
                                                     [Polygonella polygame var. brachystachya]
                                               Polygonella polygama var. croomii
                                                     [Polygonella croomii]
                                               Polygonella polygama var. polygama
                                                     [Polygonum polygamum]
                                             Polygonella polygame
                                             Polygonella robusta
                                                   [Polygonella fimbriata var. robusta]
                                                   [Thysanella robusta]
                                     Polygonum
                                           [Polyonum]
                                             Polygonum achoreum
                                                   [Polygonum erectum ssp. achoreum]
                                             Polygonum acuminatum
                                                   [Persicaria acuminata]
                                                   [Polygonum acuminata]
                                             Polygonum alaskanum
                                               Polygonum alaskanum var. glabrescens
                                             Polygonum alpinum
                                             Polygonum arenarium
                                             Polygonum arenastrum
                                             Polygonum argyrocoleon
                                             Polygonum articulatum
                                             Polygonum austiniae
                                                   [Polygonum douglasii ssp. austiniae]
                                                   [Polygonum douglasii var. austiniae]
                                             Polygonum aviculare
                                               Polygonum aviculare ssp. aviculare
                                                     [Polygonum aviculare var. vegetum]
                                                     [Polygonum heterophyllum]
                                                     [Polygonum monspeliense]
                                               Polygonum aviculare ssp. boreale
                                                     [Polygonum aviculare var. boreale]
                                                     [Polygonum boreale]
                                               Polygonum aviculare ssp. buxiforme
                                                     [Polygonum aviculare var. littorale]
                                                     [Polygonum buxiforme]
                                                     [Polygonum littorale]
                                               Polygonum aviculare ssp. depressum
                                                     [Polygonum aequale]
                                                     [Polygonum arenastrum]
                                                     [Polygonum aviculare var. arenastrum]
                                                     [Polygonum microspermum]
                                                     [Polygonum montereyense]
                                               Polygonum aviculare ssp. neglectum
                                                     [Polygonum neglectum]
                                               Polygonum aviculare ssp. rurivagum
                                                     [Polygonum aviculare var. angustissimum]
                                                     [Polygonum rurivagum]
                                               Polygonum aviculare var. angustissimum
                                               Polygonum aviculare var. aviculare
                                             Polygonum bellardii
                                                   [Polygonum provinciale]
                                             Polygonum beyrichianum
                                             Polygonum bidwelliae
                                                   [Duravia bidwelliae]
                                             Polygonum bolanderi
                                             Polygonum buxifolium
                                             Polygonum californicum
                                                   [Polygonum greenii]
                                             Polygonum campanulatum
                                             Polygonum cascadense
                                             Polygonum caurianum
                                             Polygonum coarctatum
                                             Polygonum confertiflorum
                                             Polygonum cuspidatum
                                             Polygonum davisiae
                                             Polygonum douglasii
                                                   [Polygonum buxiforme var. montanum]
                                                   [Polygonum douglasii ssp. douglasii]
                                                   [Polygonum douglasii var. latifolium]
                                                   [Polygonum emaciatum]
                                                   [Polygonum montanum]
                                               Polygonum douglasii ssp. johnstonii
                                               Polygonum douglasii var. johnstonii
                                             Polygonum engelmannii
                                                   [Polygonum douglasii ssp. engelmannii]
                                                   [Polygonum douglasii var. microspermum]
                                                   [Polygonum tenue var. microspermum]
                                             Polygonum equisetiforme
                                             Polygonum erectum
                                                   [Polygonum aviculare var. erectum]
                                               Polygonum erectum ssp. achoreum
                                             Polygonum esotericum
                                             Polygonum fimbriatum
                                             Polygonum fowleri
                                               Polygonum fowleri ssp. fowleri
                                                     [Polygonum buxifolium]
                                               Polygonum fowleri ssp. hudsonianum
                                                     [Polygonum caurianum ssp. hudsonianum]
                                                     [Polygonum hudsonianum]
                                             Polygonum franktonii
                                             Polygonum gabrielae
                                             Polygonum glaucum
                                                   [Polygonum maritimum]
                                                   [Polygonum maritinum]
                                             Polygonum gracile
                                             Polygonum graminifolium
                                             Polygonum heterosepalum
                                             Polygonum hickmanii
                                             Polygonum hudsonianum
                                             Polygonum humifusum
                                               Polygonum humifusum ssp. caurianum
                                                     [Polygonum caurianum ssp. caurianum]
                                                     [Polygonum caurianum]
                                               Polygonum humifusum ssp. humifusum
                                             Polygonum imbricatum
                                             Polygonum lacerum
                                             Polygonum majus
                                                   [Polygonum coarctatum var. majus]
                                                   [Polygonum douglasii ssp. majus]
                                             Polygonum marinense
                                             Polygonum minimum
                                             Polygonum minus
                                             Polygonum newberryi
                                               Polygonum newberryi var. glabrum
                                             Polygonum nuttallii
                                                   [Polygonum douglasii ssp. nuttallii]
                                             Polygonum oxyspermum
                                               Polygonum oxyspermum ssp. oxyspermum
                                                     [Polygonum graminifolium]
                                               Polygonum oxyspermum ssp. raii
                                                     [Polygonum raii]
                                             Polygonum paronychia
                                             Polygonum paronychioides
                                             Polygonum parryi
                                             Polygonum patulum
                                             Polygonum phytolaccifolium
                                             Polygonum plebeium
                                                   [Polygonum herniarioides]
                                             Polygonum polycnemoides
                                                   [Polygonum polycnemoides var. oliveri]
                                                   [Polygonum polycnemoides var. polycnemoides]
                                                   [Polygonum polycnenoides]
                                             Polygonum polygaloides
                                               Polygonum polygaloides ssp. confertiflorum
                                                     [Polygonum confertiflorum]
                                                     [Polygonum imbricatum]
                                                     [Polygonum kelloggii var. confertiflorum]
                                                     [Polygonum watsonii]
                                               Polygonum polygaloides ssp. esotericum
                                                     [Polygonum esotericum]
                                               Polygonum polygaloides ssp. polygaloides
                                               Polygonum polygaloides ssp. kelloggii
                                                     [Polygonum kelloggii]
                                                     [Polygonum unifolium]
                                             Polygonum polygamum
                                             Polygonum polystachyum
                                             Polygonum raii
                                             Polygonum ramosissimum
                                               Polygonum ramosissimum ssp. prolificum
                                                     [Polygonum prolificum]
                                                     [Polygonum ramosissimum var. prolificum]
                                               Polygonum ramosissimum ssp. ramosissimum
                                                     [Polygonum allocarpum]
                                                     [Polygonum atlanticum]
                                                     [Polygonum autumnale]
                                                     [Polygonum exsertum]
                                                     [Polygonum interius]
                                                     [Polygonum leptocarpum]
                                                     [Polygonum ramosissimum var. ramosissimum]
                                                     [Polygonum triangulum]
                                             Polygonum sachalinense
                                             Polygonum sawatchense
                                               Polygonum sawatchense ssp. oblivium
                                               Polygonum sawatchense ssp. sawatchense
                                                     [Polygonum douglasii ssp. johnstonii]
                                                     [Polygonum douglasii var. johnstonii]
                                                     [Polygonum triandrum]
                                             Polygonum segetum
                                                   [Persicaria segeta]
                                             Polygonum shastense
                                             Polygonum sp.
                                             Polygonum spergulariiforme
                                                   [Polygonum douglasii ssp. spergulariiforme]
                                             Polygonum striatulum
                                                   [Polygonum brasiliense]
                                                   [Polygonum brasiliensis]
                                                   [Polygonum braziliense]
                                                   [Polygonum camporum]
                                                   [Polygonum striatulum var. texense]
                                                   [Polygonum texense]
                                             Polygonum tenue
                                                   [Polygonum tenue var. protrusum]
                                                   [Polygonum tenue var. tenue]
                                             Polygonum triandrum
                                             Polygonum utahense
                                             Polygonum uvifera
                                             Polygonum watsonii
                                             Polygonum zuccarinii
                                     Pterogonum
                                             Pterogonum alatum
                                     Pterostegia
                                             Pterostegia drymarioides
                                     Rajania
                                             Rajania cordata
                                     Reynoutria
                                             Reynoutria japonica
                                     Rheum
                                             Rheum officinale
                                             Rheum palmatum
                                             Rheum rhabarbarum
                                             Rheum rhaponticum
                                     Rumex
                                             Rumex X alexidis
                                                   [Rumex alexidis]
                                             Rumex X confusus
                                             Rumex X dissimilis
                                             Rumex X franktonis
                                             Rumex X pratensis
                                                   [Rumex X acutus]
                                                   [Rumex X crispobtusifolius]
                                                   [Rumex pratensis]
                                             Rumex acetosa
                                                   [Acetosa alpestris]
                                                   [Acetosa pratensis ssp. alpestris]
                                                   [Rumex acetosa ssp. acetosa]
                                                   [Rumex acetosa ssp. alpestris]
                                                   [Rumex acetosa ssp. ambiguus]
                                                   [Rumex acetosa ssp. arifolius]
                                                   [Rumex alpestris]
                                             Rumex acetosella
                                                   [Acetosella acetosella]
                                                   [Acetosella tenuifolia]
                                                   [Acetosella vulgaris]
                                                   [Rumex acetosella ssp. angiocarpus]
                                                   [Rumex acetosella var. pyrenaeus]
                                                   [Rumex acetosella var. tenuifolius]
                                                   [Rumex angiocarpus]
                                                   [Rumex tenuifolius]
                                             Rumex albescens
                                             Rumex alpinus
                                             Rumex altissimus
                                                   [Rumex brittanicus]
                                             Rumex aquaticus
                                               Rumex aquaticus ssp. occidentalis
                                             Rumex arcticus
                                                   [Rumex arcticus var. arcticus]
                                                   [Rumex arcticus var. perlatus]
                                             Rumex beringensis
                                             Rumex britannica
                                                   [Rumex orbiculatus var. borealis]
                                                   [Rumex orbiculatus var. orbiculatus]
                                                   [Rumex orbiculatus]
                                             Rumex brownii
                                                   [Rumex brownei]
                                             Rumex bucephalophorus
                                             Rumex californicus
                                                   [Rumex salicifolius var. denticulatus]
                                                   [Rumex salicifolius var. montigenitus]
                                             Rumex chrysocarpus
                                                   [Rumex berlandieri]
                                             Rumex confertus
                                                   [Rumex alpinus var. subcalligerus]
                                             Rumex conglomeratus
                                             Rumex crassus
                                                   [Rumex salicifolius var. crassus]
                                             Rumex crispus
                                                   [Rumex crispus ssp. crispus]
                                                   [Rumex crispus ssp. fauriei]
                                                   [Rumex fauriei]
                                             Rumex cristatus
                                             Rumex cuneifolius
                                             Rumex densiflorus
                                             Rumex dentatus
                                                   [Rumex dentatus ssp. klotzschianus]
                                                   [Rumex dentatus var. dentatus]
                                             Rumex ellipticus
                                             Rumex fascicularis
                                             Rumex floridanus
                                             Rumex frutescens
                                             Rumex fueginus
                                                   [Rumex maritimus ssp. fueginus]
                                                   [Rumex maritimus var. athrix]
                                                   [Rumex maritimus var. fueginus]
                                             Rumex giganteus
                                                   [Rumex giganteus var. nelsonii]
                                             Rumex graminifolius
                                                   [Acetosella graminifolia]
                                             Rumex hastatulus
                                             Rumex hesperius
                                                   [Rumex hesperis]
                                             Rumex hymenosepalus
                                                   [Rumex hymenosepalus var. euhymenosepalus]
                                                   [Rumex hymenosepalus var. salinus]
                                             Rumex kerneri
                                             Rumex krausei
                                             Rumex lacustris
                                                   [Rumex salicifolius var. lacustris]
                                             Rumex lapponicus
                                                   [Acetosa alpestris ssp. lapponica]
                                                   [Acetosa lapponica]
                                                   [Rumex acetosa ssp. lapponicus]
                                                   [Rumex alpestris ssp. lapponicus]
                                             Rumex longifolius
                                                   [Rumex domesticus]
                                             Rumex maritimus
                                               Rumex maritimus ssp. fueginus
                                             Rumex mexicanus
                                                   [Rumex quadrangulivalvis]
                                                   [Rumex salicifolius var. mexicanus]
                                             Rumex nematopodus
                                             Rumex obovatus
                                             Rumex obtusifolius
                                                   [Acetosa oblongifolia]
                                                   [Rumex obtusifolius ssp. agrestis]
                                                   [Rumex obtusifolius ssp. sylvestris]
                                                   [Rumex obtusifolius var. obtusifolius]
                                                   [Rumex obtusifolius var. sylvestris]
                                             Rumex occidentalis
                                                   [Rumex aquaticus ssp. fenestratus]
                                                   [Rumex aquaticus ssp. occidentalis]
                                                   [Rumex aquaticus var. fenestratus]
                                                   [Rumex fenestratus]
                                                   [Rumex occidentalis var. fenestratus]
                                                   [Rumex occidentalis var. labradoricus]
                                                   [Rumex occidentalis var. procerus]
                                             Rumex orthoneurus
                                             Rumex pallidus
                                             Rumex palustris
                                             Rumex paraguayensis
                                             Rumex patientia
                                             Rumex paucifolius
                                                   [Acetosa gracilescens]
                                                   [Acetosella paucifolia]
                                                   [Rumex paucifolius ssp. gracilescens]
                                                   [Rumex paucifolius ssp. paucifolius]
                                                   [Rumex paucifolius var. gracilescens]
                                             Rumex persicarioides
                                                   [Rumex maritimus var. persicarioides]
                                             Rumex praecox
                                             Rumex pseudonatronatus
                                                   [Rumex fennicus]
                                             Rumex pseudoxyria
                                                   [Rumex acetosa ssp. pseudoxyria]
                                             Rumex pulcher
                                                   [Rumex pulcher ssp. divaricatus]
                                                   [Rumex pulcher var. divarticatus]
                                                   [Rumex pulcher var. pulcher]
                                             Rumex pycnanthus
                                                   [Rumex subalpinus]
                                             Rumex rugosus
                                                   [Acetosa rugosa]
                                             Rumex salicifolius
                                                   [Rumex salicifolius var. angustivalvis]
                                                   [Rumex salicifolius var. salicifolius]
                                             Rumex sanguineus
                                             Rumex scutatus
                                             Rumex sibiricus
                                                   [Rumex mexicanus var. angustifolius]
                                                   [Rumex mexicanus var. sibiricus]
                                             Rumex skottsbergii
                                             Rumex spinosus
                                             Rumex spiralis
                                             Rumex stenophyllus
                                             Rumex subarcticus
                                                   [Rumex mexicanus var. subarcticus]
                                             Rumex thyrsiflorus
                                                   [Rumex acetosa ssp. thyrsiflorus]
                                             Rumex tomentellus
                                             Rumex transitorius
                                                   [Rumex mexicanus var. transitorius]
                                                   [Rumex salicifolius var. transitorius]
                                             Rumex triangulivalvis
                                                   [Rumex salicifolius ssp. triangulivalvis]
                                                   [Rumex salicifolius var. oreolapathum]
                                                   [Rumex salicifolius var. triangulivalvis]
                                                   [Rumex triangulivalvis var. oreolapathum]
                                             Rumex utahensis
                                                   [Rumex mexicanus var. strictus]
                                             Rumex venosus
                                             Rumex verticillatus
                                             Rumex vesicarius
                                             Rumex violascens
                                     Sidotheca
                                             Sidotheca caryophylloides
                                                   [Oxytheca caryophylloides]
                                             Sidotheca emarginata
                                                   [Oxytheca emarginata]
                                             Sidotheca trilobata
                                                   [Oxytheca trilobata]
                                     Stenogonum
                                             Stenogonum flexum
                                                   [Eriogonum flexum var. ferronis]
                                                   [Eriogonum flexum]
                                             Stenogonum salsuginosum
                                                   [Eriogonum salsuginosum]
                                     Systenotheca
                                             Systenotheca vortriedei
                                                   [Centrostegia vortriedei]
                                                   [Chorizanthe vortriedei]
                                     Thysanella
                                     Tiniaria
                                     Tovara
                                     Tracaulon
                                     Triplaris
                                             Triplaris americana
                                             Triplaris caracasana
                                             Triplaris cumingiana
                                     Truellum
                                             Truellum sagittatum