This name is a synonym of Oonopsis multicaulis (Nutt.) Greene.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 64F4E785-1D1E-4694-A93D-8D393647176C) with original publication details: Revis. Gen. Pl. 1 318 1891.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:23786-2.
This name was in version 1 of The Plant List, record gcc-94547, and has not been changed.