This name is a synonym of Cypripedium montanum Douglas ex Lindl..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 54254) with original publication details: Rhodora 92: 48 1990.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:275626-2.
This name was in version 1 of The Plant List, record kew-54254, and has not been changed.