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Cypripedium passerinum
Cypripedium passerinum Richardson [Accepted]
Orchidaceae Cypripedioideae
2 313391 Cypripedium passerinum Richardson
S. Brown, Alpine Fl. Canad. Rocky Mts.: p. 44, fig. a (1907)
2 313391 Cypripedium passerinum Richardson
M.V. Walcott, N. Amer. Wild Fl., vol. 2 : t. 91 (1925-1927)
2 313391 Cypripedium passerinum Richardson
H.G.A. Engler, Pflanzenr., vol. 50 [Heft 12], (Orchidaceae - Pleonandreae): p. 30, fig. 14 D (1903)
313391
Cypripedium passerinum Richardson
Canad. Field-Naturalist, vol. 97 : p. 269, fig. 2 (1983)