⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2616696, with some changes.
This name is a synonym of Asclepias viridiflora .
The record derives from WCSP (in review) which reports it as a synonym with original publication details: Syn. Fl. N. Amer. 2(1): 99 1878.