⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2655099, and has not been changed.
This name is a synonym of Asclepias perennis .
The record derives from WCSP (in review) which reports it as a synonym with original publication details: Prodr. Stirp. Chap. Allerton 150 1796.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:94570-1
.