⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-26200184, and has not been changed.
This name is a synonym of Phemeranthus spinescens (Torr.) Hershkovitz.
The record derives from Tropicos which reports it as a synonym (record 26200184) with original publication details: U.S. Expl. Exped. 17(2): 250 250 1874.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:249203-2.