⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-50120329, with some changes.
This name is a synonym of Asclepias longifolia subsp. hirtella .
The record derives from Tropicos which reports it as a synonym (record 50120329
) with original publication details: New Fl. 4: 60 60 1836.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:173719-2
.