⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2616685, and has not been changed.
This name is a synonym of Asclepias linearis .
The record derives from WCSP (in review) which reports it as a synonym with original publication details: Amer. Midl. Naturalist 4: 509 1916.
Full publication details for this name can be found in IPNI: