This name is a synonym of Cypripedium kentuckiense C.F.Reed.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an illegitimate name (record 54029) with original publication details: Mid-Amer. 41(1): 9 1977.
This name was in version 1 of The Plant List, record kew-54029, and has not been changed.