Cypripedium passerinum Richardson 1823 SECTION Cypripedium SUBSECTION Obtusipetala Photo courtesy of David Mcadoo ©

TO LATE To

Common Name Sparrow's Egg Lady's Slipper

Flower Size 1.2" [3 cm]

A Canadian and NW Montanan, medium sized, cool to cold growing terrestrial species from the province of Alberta in moist and dry coniferous forests, wooded ravines, and littorals of streams and lakeshores with ovate-lanceolate, plicate, glandular-pubescent leaves that sheath the stem and blooms with solitary flowers on an erect, slender, inflorescence that appears in the late spring and summer.

References W3 Tropicos, Kew Monocot list , IPNI ; Orchid Digest Vol 47 No 1 1983 photo fide; Orchid Digest Vol 47 No 4 1983 photo; fide AOS Bulletin Vol 65 Vol 6 1996; Orchid Digest Vol 71 No 3 2007 photo;

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