⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2706081, with some changes.
This name is a synonym of Caulophyllum robustum Maxim..
The record derives from WCSP (in review) which reports it as a synonym with original publication details: Pl. Basho's & Buson's Hokku Lit. 8: 337 1973.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:874717-1.