⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2655249, with some changes.
This name is a synonym of Asclepias tuberosa .
The record derives from WCSP (in review) which reports it as a synonym with original publication details: Pap. Michigan Acad. Sci. 2: 36 1923.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:21311-2
.