⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-50093918, with some changes.
This name is a synonym of Cogswellia nevadensis var. cupulata .
The record derives from Tropicos which reports it as a synonym (record 50093918
) with original publication details: Contr. U.S. Natl. Herb. 7(1): 221 221 1900.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:143136-2
.