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  Plantae
      Magnoliophyta
         Eudicots
             Core Eudicots
                    Saxifragales
                            Saxifragaceae
                                     Antiphylla
                                     Astilbe
                                             Astilbe biternata
                                                   [Astilbe crenatiloba]
                                             Astilbe japonica
                                     Bensonia
                                     Bensoniella
                                             Bensoniella oregona
                                                   [Bensonia oregona]
                                                   [Bensoniella oregana]
                                     Bergenia
                                             Bergenia crassifolia
                                                   [Bergenia cordifolia]
                                     Bolandra
                                             Bolandra californica
                                             Bolandra oregana
                                                   [Bolandra oregana var. imnahaensis]
                                     Boykinia
                                             Boykinia aconitifolia
                                                   [Boykinia turbinata]
                                                   [Therofon aconitifolium]
                                                   [Therofon turbinatum]
                                             Boykinia intermedia
                                                   [Boykinia major var. intermedia]
                                             Boykinia major
                                             Boykinia occidentalis
                                                   [Boykinia elata]
                                                   [Boykinia vancouverensis]
                                             Boykinia richardsonii
                                                   [Saxifraga richardsonii]
                                                   [Therofon richardsonii]
                                             Boykinia rotundifolia
                                     Cascadia
                                             Cascadia nuttallii
                                                   [Saxifraga nuttallii]
                                     Chondrosea
                                     Chrysosplenium
                                             Chrysosplenium alternifolium
                                             Chrysosplenium americanum
                                             Chrysosplenium glechomifolium
                                             Chrysosplenium iowense
                                                   [Chrysosplenium alternifolium ssp. iowense]
                                                   [Chrysosplenium alternifolium var. iowense]
                                                   [Chrysosplenium alternifolium var. sibiricum]
                                             Chrysosplenium rosendahlii
                                                   [Chrysosplenium alternifolium var. rosendahlii]
                                             Chrysosplenium tetrandrum
                                                   [Chrysosplenium alternifolium ssp. tetrandrum]
                                                   [Chrysosplenium alternifolium var. tetrandrum]
                                             Chrysosplenium wrightii
                                                   [Chrysosplenium beringianum]
                                                   [Chrysosplenium wrightii var. beringianum]
                                                   [Chrysosplenium wrightii var. wrightii]
                                     Ciliaria
                                             Ciliaria austromontana
                                             Ciliaria funstonii
                                     Conimitella
                                             Conimitella williamsii
                                     Darmera
                                           [Peltiphyllum]
                                             Darmera peltata
                                                   [Peltiphyllum peltatum]
                                                   [Saxifraga peltata]
                                     Elmera
                                             Elmera racemosa
                                                   [Elmera racemosa var. puberulenta]
                                                   [Elmera racemosa var. racemosa]
                                                   [Heuchera racemosa]
                                     Heuchera
                                             Heuchera X cuneata
                                             Heuchera X easthamii
                                             Heuchera abramsii
                                             Heuchera alba
                                             Heuchera americana
                                               Heuchera americana var. americana
                                                     [Heuchera americana var. brevipetala]
                                                     [Heuchera americana var. calycosa]
                                                     [Heuchera americana var. heteradenia]
                                                     [Heuchera americana var. subtruncata]
                                                     [Heuchera calycosa]
                                                     [Heuchera curtisii var. crenata]
                                                     [Heuchera curtisii]
                                                     [Heuchera lancipetala]
                                               Heuchera americana var. hirsuticaulis
                                                     [Heuchera americana var. interior]
                                                     [Heuchera hirsuticaulis]
                                               Heuchera americana var. hispida
                                             Heuchera arkansana
                                             Heuchera bracteata
                                             Heuchera brevistaminea
                                             Heuchera caespitosa
                                                   [Heuchera cespitosa]
                                             Heuchera calycosa
                                             Heuchera caroliniana
                                                   [Heuchera americana var. caroliniana]
                                             Heuchera chlorantha
                                             Heuchera crinita
                                             Heuchera curtisii
                                             Heuchera cylindrica
                                                   [Heuchera cylindrica var. alpina]
                                                   [Heuchera cylindrica var. cylindrica]
                                                   [Heuchera cylindrica var. glabella]
                                                   [Heuchera cylindrica var. orbicularis]
                                                   [Heuchera cylindrica var. ovalifolia]
                                                   [Heuchera cylindrica var. septentrionalis]
                                                   [Heuchera cylindrica var. suksdorfii]
                                                   [Heuchera glabella]
                                                   [Heuchera ovalifolia var. orbicularis]
                                                   [Heuchera ovalifolia var. thompsonii]
                                                   [Heuchera ovalifolia]
                                                   [Heuchera saxicola]
                                                   [Heuchera suksdorfii]
                                             Heuchera diversifolia
                                             Heuchera eastwoodiae
                                             Heuchera elegans
                                             Heuchera glabra
                                             Heuchera glomerulata
                                             Heuchera grossulariifolia
                                                   [Heuchera cusickii]
                                                   [Heuchera grossulariifolia var. grossulariifolia]
                                                   [Heuchera grossulariifolia var. tenuifolia]
                                                   [Heuchera tenuifolia]
                                             Heuchera hallii
                                             Heuchera hirsuticaulis
                                             Heuchera hirsutissima
                                             Heuchera lancipetala
                                             Heuchera longiflora
                                                   [Heuchera aceroides]
                                                   [Heuchera longiflora var. aceroides]
                                                   [Heuchera scabra]
                                             Heuchera macrorhiza
                                             Heuchera maxima
                                             Heuchera merriamii
                                             Heuchera micrantha
                                               Heuchera micrantha var. diversifolia
                                                     [Heuchera diversifolia]
                                                     [Heuchera micrantha var. pacifica]
                                               Heuchera micrantha var. erubescens
                                               Heuchera micrantha var. hartwegii
                                               Heuchera micrantha var. macropetala
                                               Heuchera micrantha var. micrantha
                                             Heuchera missouriensis
                                             Heuchera novamexicana
                                                   [Heuchera novomexicana]
                                             Heuchera parishii
                                                   [Heuchera alpestris]
                                             Heuchera parviflora
                                               Heuchera parviflora var. parviflora
                                                     [Heuchera missouriensis]
                                                     [Heuchera parviflora var. rugelii]
                                               Heuchera parviflora var. puberula
                                                     [Heuchera puberula]
                                             Heuchera parvifolia
                                                   [Heuchera duranii]
                                                   [Heuchera flabellifolia var. flabellifolia]
                                                   [Heuchera flabellifolia var. subsecta]
                                                   [Heuchera flabellifolia]
                                                   [Heuchera nivalis]
                                                   [Heuchera parvifolia var. arizonica]
                                                   [Heuchera parvifolia var. dissecta]
                                                   [Heuchera parvifolia var. flavescens]
                                                   [Heuchera parvifolia var. major]
                                                   [Heuchera parvifolia var. microcarpa]
                                                   [Heuchera parvifolia var. nivalis]
                                                   [Heuchera parvifolia var. parvifolia]
                                                   [Heuchera parvifolia var. utahensis]
                                               Heuchera parvifolia var. nivalis
                                               Heuchera parvifolia var. parvifolia
                                             Heuchera pilosissima
                                                   [Heuchera pilosissima var. hemisphaerica]
                                                   [Heuchera pilosissima var. pilosissima]
                                             Heuchera puberula
                                             Heuchera pubescens
                                                   [Heuchera pubescens var. brachyandra]
                                             Heuchera pulchella
                                             Heuchera racemosa
                                             Heuchera richardsonii
                                                   [Heuchera richardsonii var. affinis]
                                                   [Heuchera richardsonii var. grayana]
                                                   [Heuchera richardsonii var. hispidior]
                                             Heuchera rubescens
                                                   [Heuchera leptomeria var. peninsularis]
                                                   [Heuchera leptomeria]
                                                   [Heuchera pringlei]
                                                   [Heuchera rubescens var. alpicola]
                                                   [Heuchera rubescens var. glandulosa]
                                                   [Heuchera rubescens var. pachypoda]
                                                   [Heuchera rubescens var. rubescens]
                                                   [Heuchera rubescens var. rydbergiana]
                                                   [Heuchera rubescens var. truncata]
                                                   [Heuchera rubescens var. versicolor]
                                                   [Heuchera versicolor var. leptomeria]
                                                   [Heuchera versicolor]
                                             Heuchera sanguinea
                                                   [Heuchera sanguinea var. pulchra]
                                                   [Heuchera sanguinea var. sanguinea]
                                             Heuchera versicolor
                                             Heuchera villosa
                                               Heuchera villosa var. arkansana
                                                     [Heuchera arkansana]
                                               Heuchera villosa var. villosa
                                                     [Heuchera crinita]
                                                     [Heuchera macrorhiza]
                                                     [Heuchera villosa var. intermedia]
                                                     [Heuchera villosa var. macrorhiza]
                                             Heuchera wootonii
                                     Hirculus
                                             Hirculus platysepalus
                                               Hirculus platysepalus ssp. crandallii
                                             Hirculus prorepens
                                             Hirculus serpyllifolius ssp. chrysanthus
                                     Hydatica
                                     Jepsonia
                                             Jepsonia heterandra
                                             Jepsonia malvifolia
                                             Jepsonia parryi
                                     Leptarrhena
                                             Leptarrhena pyrolifolia
                                                   [Leptarrhena amplexifolia]
                                                   [Lepuropetalon amplexifolium]
                                                   [Saxifraga amplexifolia]
                                                   [Saxifraga pyrolifolia]
                                     Leptasea
                                     Lepuropetalon
                                             Lepuropetalon spathulatum
                                                   [Pyxidanthera spathulata]
                                     Lithophragma
                                             Lithophragma affine
                                                   [Lithophragma affine ssp. affine]
                                                   [Lithophragma affine ssp. mixtum]
                                                   [Lithophragma tripartitum]
                                             Lithophragma bolanderi
                                                   [Lithophragma scabrellum var. peirsonii]
                                                   [Lithophragma scabrellum]
                                             Lithophragma campanulatum
                                                   [Lithophragma heterophyllum var. campanulatum]
                                             Lithophragma cymbalaria
                                             Lithophragma glabrum
                                                   [Lithophragma bulbiferum]
                                                   [Lithophragma glabrum var. bulbiferum]
                                                   [Lithophragma glabrum var. ramulosum]
                                             Lithophragma heterophyllum
                                             Lithophragma maximum
                                             Lithophragma parviflorum
                                                   [Lithophragma parviflorum var. parviflorum]
                                             Lithophragma tenellum
                                                   [Lithophragma australe]
                                                   [Lithophragma brevilobum]
                                                   [Lithophragma rupicola]
                                                   [Lithophragma tenellum var. thompsonii]
                                             Lithophragma trifoliatum
                                                   [Lithophragma parviflorum var. trifoliatum]
                                     Micranthes
                                             Micranthes apetala
                                                   [Saxifraga apetala]
                                                   [Saxifraga columbiana var. apetala]
                                                   [Saxifraga integrifolia var. apetala]
                                             Micranthes aprica
                                                   [Saxifraga aprica]
                                                   [Saxifraga laevicaulis]
                                             Micranthes bryophora
                                                   [Saxifraga bryophora var. bryophora]
                                                   [Saxifraga bryophora var. tobiasiae]
                                                   [Saxifraga bryophora]
                                             Micranthes californica
                                                   [Saxifraga californica]
                                                   [Saxifraga fallax]
                                                   [Saxifraga gracillima]
                                                   [Saxifraga hallii]
                                                   [Saxifraga napensis]
                                                   [Saxifraga parvifolia]
                                                   [Saxifraga virginiensis var. californica]
                                             Micranthes calycina
                                                   [Saxifraga calycina ssp. calycina]
                                                   [Saxifraga calycina]
                                                   [Saxifraga davurica ssp. grandipetala]
                                                   [Saxifraga davurica var. grandipetala]
                                             Micranthes careyana
                                                   [Micranthes tennesseensis]
                                                   [Saxifraga careyana]
                                             Micranthes caroliniana
                                                   [Saxifraga caroliniana]
                                             Micranthes davurica
                                                   [Saxifraga davurica]
                                             Micranthes eriophora
                                                   [Saxifraga eriophora]
                                             Micranthes ferruginea
                                                   [Saxifraga ferruginea var. ferruginea]
                                                   [Saxifraga ferruginea var. foliacea]
                                                   [Saxifraga ferruginea var. macounii]
                                                   [Saxifraga ferruginea var. newcombei]
                                                   [Saxifraga ferruginea var. vreelandii]
                                                   [Saxifraga ferruginea]
                                                   [Saxifraga vreelandii]
                                             Micranthes foliolosa
                                                   [Hydatica foliolosa]
                                                   [Saxifraga foliolosa var. multiflora]
                                                   [Saxifraga foliolosa]
                                                   [Saxifraga stellaris var. comosa]
                                                   [Spatularia foliolosa]
                                             Micranthes fragosa
                                                   [Saxifraga claytoniifolia]
                                                   [Saxifraga fragosa ssp. claytoniifolia]
                                                   [Saxifraga fragosa]
                                                   [Saxifraga integrifolia var. claytoniifolia]
                                                   [Saxifraga nidifica var. claytoniifolia]
                                             Micranthes gaspensis
                                                   [Saxifraga gaspensis]
                                                   [Saxifraga nivalis var. gaspensis]
                                             Micranthes gormanii
                                                   [Saxifraga gormanii]
                                                   [Saxifraga occidentalis var. dentata]
                                             Micranthes hieraciifolia
                                                   [Saxifraga hieracifolia]
                                                   [Saxifraga hieraciifolia var. angusticapsula]
                                                   [Saxifraga hieraciifolia var. hieraciifolia]
                                                   [Saxifraga hieraciifolia var. rufopilosa]
                                                   [Saxifraga hieraciifolia]
                                             Micranthes hitchcockiana
                                                   [Saxifraga hitchcockiana]
                                                   [Saxifraga hitchcockii]
                                                   [Saxifraga occidentalis var. latipetiolata]
                                             Micranthes howellii
                                                   [Saxifraga howellii]
                                             Micranthes idahoensis
                                                   [Saxifraga idahoensis]
                                                   [Saxifraga marshallii ssp. idahoensis]
                                                   [Saxifraga marshallii var. idahoensis]
                                                   [Saxifraga occidentalis var. idahoensis]
                                             Micranthes integrifolia
                                                   [Micranthes bidens]
                                                   [Saxifraga bracteosa var. angustifolia]
                                                   [Saxifraga bracteosa]
                                                   [Saxifraga fragosa var. leucandra]
                                                   [Saxifraga integrifolia]
                                                   [Saxifraga laevicarpa]
                                             Micranthes lyallii
                                                   [Saxifraga lyallii ssp. hultenii]
                                                   [Saxifraga lyallii ssp. lyallii]
                                                   [Saxifraga lyallii var. hultenii]
                                                   [Saxifraga lyallii var. laxa]
                                                   [Saxifraga lyallii]
                                             Micranthes marshallii
                                                   [Saxifraga marshallii]
                                             Micranthes micranthidifolia
                                                   [Saxifraga micranthidifolia]
                                             Micranthes nelsoniana
                                               Micranthes nelsoniana var. aestivalis
                                               Micranthes nelsoniana var. carlottae
                                                     [Saxifraga nelsoniana ssp. carlottae]
                                                     [Saxifraga punctata ssp. carlottae]
                                                     [Saxifraga punctata var. carlottae]
                                                     [Saxifraga punctata var. charlottae]
                                               Micranthes nelsoniana var. cascadensis
                                                     [Saxifraga nelsoniana ssp. cascadensis]
                                                     [Saxifraga punctata ssp. cascadensis]
                                                     [Saxifraga punctata var. cascadensis]
                                               Micranthes nelsoniana var. insularis
                                                     [Saxifraga insularis]
                                                     [Saxifraga nelsoniana ssp. insularis]
                                                     [Saxifraga punctata ssp. insularis]
                                               Micranthes nelsoniana var. nelsoniana
                                                     [Saxifraga nelsoniana ssp. nelsoniana]
                                                     [Saxifraga nelsoniana]
                                                     [Saxifraga punctata ssp. nelsoniana]
                                                     [Saxifraga punctata var. nelsoniana]
                                                     [Saxifraga punctata var. punctata]
                                                     [Saxifraga punctata]
                                               Micranthes nelsoniana var. porsildiana
                                                     [Saxifraga nelsoniana ssp. pacifica]
                                                     [Saxifraga nelsoniana ssp. porsildiana]
                                                     [Saxifraga porsildiana]
                                                     [Saxifraga punctata ssp. pacifica]
                                                     [Saxifraga punctata ssp. porsildiana]
                                                     [Saxifraga punctata var. porsildiana]
                                             Micranthes nidifica
                                                   [Micranthes montana]
                                                   [Saxifraga bracteosa var. micropetala]
                                                   [Saxifraga columbiana]
                                                   [Saxifraga crenatifolia]
                                                   [Saxifraga integrifolia var. columbiana]
                                                   [Saxifraga integrifolia var. leptopetala]
                                                   [Saxifraga integrifolia var. micropetala]
                                                   [Saxifraga montana]
                                                   [Saxifraga nidifica var. nidifica]
                                                   [Saxifraga nidifica]
                                                   [Saxifraga plantaginea]
                                             Micranthes nivalis
                                                   [Saxifraga nivalis var. rufopilosa]
                                                   [Saxifraga nivalis]
                                                   [Saxifraga rufopilosa]
                                             Micranthes nudicaulis
                                                   [Saxifraga nudicaulis]
                                             Micranthes occidentalis
                                                   [Micranthes lata]
                                                   [Micranthes saximontana]
                                                   [Saxifraga occidentalis var. allenii]
                                                   [Saxifraga occidentalis var. wallowensis]
                                                   [Saxifraga occidentalis]
                                                   [Saxifraga reflexa ssp. occidentalis]
                                             Micranthes odontoloma
                                                   [Saxifraga arguta]
                                                   [Saxifraga odontoloma]
                                                   [Saxifraga punctata ssp. arguta]
                                                   [Saxifraga punctata var. arguta]
                                             Micranthes oregana
                                                   [Micranthes arnoglossa]
                                                   [Micranthes brachypus]
                                                   [Saxifraga montanensis]
                                                   [Saxifraga oregana var. montanensis]
                                                   [Saxifraga oregana var. sierrae]
                                                   [Saxifraga oregana]
                                             Micranthes palmeri
                                                   [Saxifraga palmeri]
                                                   [Saxifraga virginiensis var. subintegra]
                                             Micranthes pensylvanica
                                                   [Saxifraga forbesii]
                                                   [Saxifraga pensylvanica ssp. interior]
                                                   [Saxifraga pensylvanica ssp. tenuirostrata]
                                                   [Saxifraga pensylvanica var. forbesii]
                                                   [Saxifraga pensylvanica var. pensylvanica]
                                                   [Saxifraga pensylvanica var. purpuripetala]
                                                   [Saxifraga pensylvanica]
                                             Micranthes petiolaris
                                                   [Hydatica petiolaris]
                                                   [Saxifraga michauxii]
                                                   [Spathularia michauxii]
                                                   [Spatularia michauxii]
                                             Micranthes razshivinii
                                                   [Saxifraga razshivinii]
                                             Micranthes redofskyi
                                                   [Saxifraga redofskii]
                                             Micranthes reflexa
                                                   [Saxifraga reflexa var. reflexa]
                                                   [Saxifraga reflexa]
                                             Micranthes rhomboidea
                                                   [Micranthes franciscana]
                                                   [Saxifraga austrina]
                                                   [Saxifraga greenei]
                                                   [Saxifraga integrifolia var. rhomboidea]
                                                   [Saxifraga rhomboidea var. austrina]
                                                   [Saxifraga rhomboidea var. franciscana]
                                                   [Saxifraga rhomboidea]
                                             Micranthes rufidula
                                                   [Saxifraga aequidentata]
                                                   [Saxifraga klickitatensis]
                                                   [Saxifraga occidentalis ssp. rufidula]
                                                   [Saxifraga occidentalis var. aequidentata]
                                                   [Saxifraga occidentalis var. rufidula]
                                                   [Saxifraga rufidula]
                                             Micranthes spicata
                                                   [Saxifraga spicata]
                                             Micranthes stellaris
                                                   [Hydatica stellaris]
                                                   [Saxifraga stellaris]
                                                   [Spatularia stellaris]
                                             Micranthes subapetala
                                                   [Saxifraga hieraciifolia var. rydbergii]
                                                   [Saxifraga montanensis var. subpetala]
                                                   [Saxifraga oregana var. subpetala]
                                                   [Saxifraga rydbergii]
                                                   [Saxifraga subapetala]
                                             Micranthes tempestiva
                                                   [Saxifraga tempestiva]
                                             Micranthes tenuis
                                                   [Saxifraga nivalis var. tenuis]
                                                   [Saxifraga tenuis]
                                             Micranthes texana
                                                   [Saxifraga reevesii]
                                                   [Saxifraga texana]
                                             Micranthes tischii
                                                   [Saxifraga tischii]
                                             Micranthes tolmiei
                                                   [Saxifraga tolmiei var. ledifolia]
                                                   [Saxifraga tolmiei]
                                             Micranthes unalaschensis
                                                   [Saxifraga davurica var. unalaschcensis]
                                                   [Saxifraga unalaschcensis]
                                             Micranthes virginiensis
                                                   [Saxifraga virginiensis var. virginiensis]
                                                   [Saxifraga virginiensis]
                                     Mitella
                                             Mitella X intermedia
                                             Mitella breweri
                                                   [Pectiantia breweri]
                                             Mitella caulescens
                                                   [Mitellastra caulescens]
                                             Mitella diphylla
                                                   [Mitella oppositifolia]
                                             Mitella diversifolia
                                                   [Ozomelis diversifolia]
                                             Mitella nuda
                                                   [Mitella prostrata]
                                             Mitella ovalis
                                                   [Pectiantia ovalis]
                                             Mitella pentandra
                                                   [Pectiantia pentandra]
                                             Mitella stauropetala
                                                   [Mitella stauropetala var. stauropetala]
                                                   [Mitella stauropetala var. stenopetala]
                                                   [Mitella stenopetala]
                                                   [Ozomelis stauropetala]
                                               Mitella stauropetala var. stenopetala
                                             Mitella trifida
                                                   [Mitella trifida var. trifida]
                                                   [Mitella trifida var. violacea]
                                                   [Mitella violacea]
                                                   [Ozomelis anomala]
                                                   [Ozomelis micrantha]
                                                   [Ozomelis trifida]
                                     Mitellastra
                                     Muscaria
                                             Muscaria adscendens
                                             Muscaria delicatula
                                             Muscaria micropetala
                                             Muscaria monticola
                                     Ozomelis
                                     Pectiantia
                                     Rodgersia
                                             Rodgersia sambucifolia
                                     Saxifraga
                                             Saxifraga X geum
                                                   [Micranthes geum]
                                             Saxifraga adscendens
                                                   [Muscaria adscendens]
                                                   [Saxifraga adscendens ssp. oregonensis]
                                                   [Saxifraga adscendens var. oregonensis]
                                             Saxifraga aizoides
                                                   [Leptasea aizoides]
                                             Saxifraga aleutica
                                             Saxifraga amplexifolia
                                             Saxifraga austromontana
                                             Saxifraga bracteata
                                                   [Saxifraga rivularis var. laurentiana]
                                             Saxifraga bronchialis
                                               Saxifraga bronchialis ssp. austromontana
                                                     [Ciliaria austromontana]
                                                     [Saxifraga austromontana]
                                                     [Saxifraga bronchialis var. austromontana]
                                               Saxifraga bronchialis ssp. bronchialis
                                               Saxifraga bronchialis ssp. funstonii
                                                     [Ciliaria funstonii]
                                                     [Saxifraga bronchialis ssp. codyana]
                                                     [Saxifraga bronchialis ssp. codyanus]
                                                     [Saxifraga bronchialis var. purpureomaculata]
                                                     [Saxifraga codyana]
                                                     [Saxifraga codyanus]
                                                     [Saxifraga firma]
                                                     [Saxifraga funstonii]
                                             Saxifraga cernua
                                                   [Saxifraga cernua var. exilioides]
                                             Saxifraga cespitosa
                                                   [Muscaria caespitosa]
                                                   [Muscaria cespitosa ssp. lauxiuscula]
                                                   [Muscaria cespitosa ssp. laxiuscula]
                                                   [Muscaria cespitosa]
                                                   [Muscaria delicatula]
                                                   [Muscaria micropetala]
                                                   [Muscaria monticola]
                                                   [Saxifraga caespitosa ssp. caespitosa]
                                                   [Saxifraga caespitosa ssp. delicatula]
                                                   [Saxifraga caespitosa ssp. eucaespitosa]
                                                   [Saxifraga caespitosa ssp. monticola]
                                                   [Saxifraga caespitosa ssp. sileneflora]
                                                   [Saxifraga caespitosa ssp. subgemmifera]
                                                   [Saxifraga caespitosa ssp. uniflora]
                                                   [Saxifraga caespitosa var. emarginata]
                                                   [Saxifraga caespitosa var. lemmonii]
                                                   [Saxifraga caespitosa var. minima]
                                                   [Saxifraga caespitosa var. subgemmifera]
                                                   [Saxifraga caespitosa]
                                                   [Saxifraga cespitosa ssp. cespitosa]
                                                   [Saxifraga cespitosa ssp. decipiens]
                                                   [Saxifraga cespitosa ssp. delicatula]
                                                   [Saxifraga cespitosa ssp. eucaespitosa]
                                                   [Saxifraga cespitosa ssp. exaratoides]
                                                   [Saxifraga cespitosa ssp. lauxiuscula]
                                                   [Saxifraga cespitosa ssp. laxiuscula]
                                                   [Saxifraga cespitosa ssp. monticola]
                                                   [Saxifraga cespitosa ssp. sileneflora]
                                                   [Saxifraga cespitosa ssp. subgemmifera]
                                                   [Saxifraga cespitosa ssp. uniflora]
                                                   [Saxifraga cespitosa var. cespitosa]
                                                   [Saxifraga cespitosa var. emarginata]
                                                   [Saxifraga cespitosa var. lemmonii]
                                                   [Saxifraga cespitosa var. minima]
                                                   [Saxifraga cespitosa var. subgemmifera]
                                                   [Saxifraga micropetala]
                                                   [Saxifraga monticola]
                                                   [Saxifraga sileneflora]
                                             Saxifraga cherlerioides
                                                   [Saxifraga bronchialis ssp. cherlerioides]
                                                   [Saxifraga bronchialis var. cherlerioides]
                                             Saxifraga chrysantha
                                                   [Hirculus serpyllifolius ssp. chrysanthus]
                                                   [Saxifraga serpyllifolia ssp. chrysantha]
                                                   [Saxifraga serpyllifolia var. chrysantha]
                                             Saxifraga codyana
                                             Saxifraga codyanus
                                             Saxifraga crandallii
                                             Saxifraga debilis
                                                   [Saxifraga hyperborea ssp. debilis]
                                                   [Saxifraga rivularis var. debilis]
                                             Saxifraga eschscholtzii
                                             Saxifraga firma
                                             Saxifraga flagellaris
                                               Saxifraga flagellaris ssp. crandallii
                                                     [Hirculus platysepalus ssp. crandallii]
                                                     [Saxifraga crandallii]
                                                     [Saxifraga flagellaris var. crandallii]
                                               Saxifraga flagellaris ssp. flagellaris
                                               Saxifraga flagellaris ssp. platysepala
                                                     [Hirculus platysepalus]
                                                     [Saxifraga flagellaris var. platysepala]
                                                     [Saxifraga platysepala]
                                               Saxifraga flagellaris ssp. setigera
                                                     [Saxifraga setigera]
                                             Saxifraga fragarioides
                                             Saxifraga funstonii
                                             Saxifraga hirculus
                                                   [Hirculus prorepens]
                                                   [Leptasea hirculus]
                                                   [Saxifraga hirculus ssp. coloradensis]
                                                   [Saxifraga hirculus ssp. compacta]
                                                   [Saxifraga hirculus ssp. hirculus]
                                                   [Saxifraga hirculus ssp. propinqua]
                                                   [Saxifraga hirculus var. propinqua]
                                                   [Saxifraga prorepens]
                                             Saxifraga hirsuta
                                             Saxifraga hyperborea
                                                   [Saxifraga rivularis ssp. flexuosa]
                                                   [Saxifraga rivularis ssp. hyperborea]
                                                   [Saxifraga rivularis var. flexuosa]
                                                   [Saxifraga rivularis var. hyperborea]
                                               Saxifraga hyperborea ssp. debilis
                                             Saxifraga insularis
                                             Saxifraga mertensiana
                                                   [Saxifraga mertensiana var. eastwoodiae]
                                             Saxifraga nathorstii
                                                   [Saxifraga oppositifolia var. nathorstii]
                                             Saxifraga nelsoniana
                                             Saxifraga nuttallii
                                             Saxifraga oppositifolia
                                               Saxifraga oppositifolia ssp. oppositifolia
                                                     [Antiphylla oppositifolia]
                                               Saxifraga oppositifolia ssp. smalliana
                                                     [Saxifraga oppositifolia ssp. glandulisepala]
                                             Saxifraga paniculata
                                                   [Chondrosea aizoon]
                                                   [Chondrosea paniculata ssp. neogaea]
                                                   [Chondrosea paniculata]
                                                   [Saxifraga aizoon ssp. neogaea]
                                                   [Saxifraga aizoon var. neogaea]
                                                   [Saxifraga aizoon]
                                                   [Saxifraga paniculata ssp. neogaea]
                                                   [Saxifraga paniculata ssp. paniculata]
                                             Saxifraga pectinata
                                             Saxifraga peltata
                                             Saxifraga platysepala
                                             Saxifraga porsildiana
                                             Saxifraga punctata
                                             Saxifraga pyrolifolia
                                             Saxifraga radiata
                                                   [Saxifraga exilis]
                                             Saxifraga richardsonii
                                             Saxifraga rivularis
                                               Saxifraga rivularis ssp. arctolitoralis
                                               Saxifraga rivularis ssp. rivularis
                                             Saxifraga rosacea
                                             Saxifraga serpyllifolia
                                                   [Hirculus serpyllifolius]
                                                   [Saxifraga serpyllifolia var. purpurea]
                                             Saxifraga setigera
                                             Saxifraga sibirica
                                             Saxifraga sibthorpii
                                             Saxifraga stolonifera
                                                   [Saxifraga sarmentosa]
                                             Saxifraga taylorii
                                             Saxifraga tricuspidata
                                                   [Leptasea tricuspidata]
                                             Saxifraga tridactylites
                                             Saxifraga umbellulata
                                             Saxifraga umbrosa
                                             Saxifraga vespertina
                                                   [Ciliaria vespertina]
                                                   [Saxifraga bronchialis ssp. vespertina]
                                                   [Saxifraga bronchialis var. vespertina]
                                     Saxifragopsis
                                             Saxifragopsis fragarioides
                                                   [Saxifraga fragarioides]
                                     Spathularia
                                     Spatularia
                                             Spatularia foliolosa
                                     Suksdorfia
                                           [Hemieva]
                                             Suksdorfia ranunculifolia
                                                   [Boykinia ranunculifolia]
                                                   [Hemieva ranunculifolia]
                                             Suksdorfia violacea
                                     Sullivantia
                                             Sullivantia hapemanii
                                               Sullivantia hapemanii var. hapemanii
                                               Sullivantia hapemanii var. purpusii
                                                     [Sullivantia purpusii]
                                             Sullivantia oregana
                                                   [Sullivantia gregana]
                                             Sullivantia sullivantii
                                                   [Saxifraga sullivantii]
                                                   [Sullivantia ohionis]
                                                   [Sullivantia renifolia]
                                     Telesonix
                                             Telesonix heucheriformis
                                                   [Boykinia heucheriformis]
                                                   [Boykinia jamesii var. heucheriformis]
                                                   [Telesonix jamesii var. heucheriformis]
                                             Telesonix jamesii
                                                   [Boykinia jamesii]
                                                   [Saxifraga jamesii]
                                     Tellima
                                             Tellima grandiflora
                                                   [Tellima odorata]
                                     Therofon
                                     Tiarella
                                             Tiarella californica
                                             Tiarella cordifolia
                                                   [Tiarella cordifolia var. austrina]
                                                   [Tiarella cordifolia var. collina]
                                                   [Tiarella cordifolia var. cordifolia]
                                                   [Tiarella macrophylla]
                                                   [Tiarella wherryi]
                                             Tiarella laciniata
                                             Tiarella trifoliata
                                               Tiarella trifoliata var. laciniata
                                                     [Tiarella californica]
                                                     [Tiarella laciniata]
                                               Tiarella trifoliata var. trifoliata
                                               Tiarella trifoliata var. unifoliata
                                                     [Tiarella trifoliata ssp. unifoliata]
                                                     [Tiarella unifoliata]
                                             Tiarella unifoliata
                                     Tolmiea
                                             Tolmiea diplomenziesii
                                             Tolmiea menziesii
                                                   [Tiarella menziesii]