Dataset: All Collections
Taxa: Crataegus engelmannii, Crataegus berberifolia var. engelmannii (Crataegus engelmannii, Crataegus sublobulata, Crataegus triumphalis, Crataegus crus-galli var. bellica, Crataegus engelmannii var. sinistra)
Search Criteria: excluding cultivated/captive occurrences