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RM RM 55536 Asclepias hypoleuca physical specimen Apocynaceae Asclepias hypoleuca (A. Gray) Woodson 566 O. B. Metcalfe 1903 8 23 235 U.S.A. New Mexico Catron Mogollon Mountains: near West Fork Gila River; Turkey Creek. -108.51649 33.3269 1 2286 Phenology: flowering & fruiting. RM RM 128552 Asclepias hypoleuca physical specimen Apocynaceae Asclepias hypoleuca (A. Gray) Woodson 520 Witmer Stone 1919 7 5 186 U.S.A. Arizona Cochise Chricahua Mountains: Barfoot Park. -109.2804 31.917 1 2439 2515 Phenology: flowering. 3600 3,1,0 true