This name is a synonym of Caulophyllum robustum Maxim..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 3500525) with original publication details: Bot. Jahrb. Syst. 29(3–4): 337 1900.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:107379-1.
This name was in version 1 of The Plant List, record tro-3500525.