⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2655313, and has not been changed.
This name is a synonym of Asclepias nyctaginifolia .
The record derives from WCSP (in review) which reports it as a synonym with original publication details: Proc. Amer. Acad. Arts 16: 102 1881.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:94749-1
.