Vascular Plants of the Gila Wilderness
Presented in Association with the
Western New Mexico University Department
of Natural Sciences
Asclepias macrotis Torrey
(Long Horned Milkweed)
Family: Apocynaceae
Status: Native
Synonyms:
None
Asclepias macrotis is easily recognized by its long, filiform leaves with reflexed margins and its greenish white flowers. It is a rather delicate looking plant for an Asclepias. The base is quite woody (suffrutescent) and it usually has only 1-5 flowers per umbel. The long horns on the hoods are quite obvious. Asclepias macrotis is found rather infrequently in the Gila, in rocky draws or limestone ridges.
Please click on an image for a larger file.
Asclepias macrotis, photo Russ Kleinman & Jim O'Hara, Silver City Range, McComas Peak, August 10, 2011
Asclepias macrotis, growth habit, photo Russ Kleinman & Jim O'Hara, Silver City Range, McComas Peak, August 10, 2011
Asclepias macrotis, filiform leaf, photo Russ Kleinman & Jim O'Hara, Silver City Range, McComas Peak, August 10, 2011
Asclepias macrotis, flowers measured closeup, photo Russ Kleinman & Jim O'Hara, Silver City Range, McComas Peak, August 10, 2011
Asclepias macrotis, flower measured closeup, photo Russ Kleinman & Jim O'Hara, Silver City Range, McComas Peak, August 10, 2011
Asclepias macrotis, leaves measured closeup, photo Russ Kleinman & Jim O'Hara, Silver City Range, McComas Peak, August 10, 2011
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