⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2616682, 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: Contr. U. S. Natl. Herb. 19: 509 1915.
Full publication details for this name can be found in IPNI: