This name is a synonym of Canadanthus modestus (Lindl.) G.L.Nesom.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 8AB0BC85-EB23-4324-92F4-1D5EA3F986DB) with original publication details: Fl. Bor.-Amer. (Hooker) 2 8 1834.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:23769-2.
This name was in version 1 of The Plant List, record gcc-15873.