This name is a synonym of Osmorhiza chilensis var. purpurea (J.M. Coult. & Rose) B. Boivin.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50120933) with original publication details: Contr. U.S. Natl. Herb. 7(1): 67 1900.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:267806-2.
This name was in version 1 of The Plant List, record tro-50120933.