This name is a synonym of Taxus canadensis Marshall.
The record derives from WCSP
(data supplied on 2012-03-26)
which reports it as a synonym (record 379473) with original publication details: Manual ed. 2: 425 1856.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:249728-2.
This name was in version 1 of The Plant List, record kew-2521708.