Cypripedium montanum Douglas ex Lindl. 1840 SECTION Cypripedium SUBSECTION Cypripedium

Photos courtesy of Bill Temple

Dark form in situ

Green Form

Photos by Carl Austin of Orchid Species in Flask Ltd.

to EARLY

Common Name The Mountain Ladies Slipper

Flower Size Up to 5" [to 12.5 cm]

A medium sized, cold growing terrestrial that is found in the western US north to southern Alaska in dappled shade of coniferous forests at elevations around 1500 meters with ovate-lanceolate, plicate, alternate leaves and blooms in the spring and early summer on a slender, terminal inflorescence that carries up to 3 distant flowers subtended by a leafy bract.

Synonyms Cypripedium montanum f. praetertinctum Sheviak 1990; Cypripedium montanum f. welchii P.M.Br. 1995; Cypripedium occidentale S. Wats. 1876

References W3 Tropicos, Kew Monocot list , IPNI ; Bonplandia Rchb.f 1856; Die Orchideen Schlechter 1915; Encyclopedia of Cultivated Orchids Hawkes 1965; AOS Bulletin Vol 38 #10 1969 photo fide; Die Orchideen 3 Auflage Bd 1 Sonderabdruck aus Schlechter Lieferung 4 193 to 256 Brieger, Maatsch and Senghas 1971 drawing ok; The Native Orchids of the United States and Canada Luer 1975 drawing/photos fide; Orchid Digest Vol 44 No 1 1980 drawing/photo fide; Orchid Digest Vol 45 No 1 1981 photo fide; Orchid Digest Vol 47 No 4 1983 photo fide; Orchid Digest Vol 56 No 2 1992 photo ; AOS Bulletin Vol 61 No 5/464 1992 photo; AOS Bulletin Vol 61 No 6/547 1992 photo fide; AOS Bulletin Vol 61 No 8 1992 photo fide; AOS Bulletin Vol 64 No 3 1995 photo fide; Rudolf Schlechter Die Orchideen Band 1C lieferung 40 pg 2492 - 2564 Brieger 2000; AOS Bulletin Vol 71 No 1 2002 photo fide; AOS Bulletin Vol 75 No 5 2006 photo fide; Orchid Digest Vol 71 No 3 2007 photo fide; Orchid Digest Vol 75 #4 2011 photo fide; AOS Bulletin Vol 85 #3 2016 photo fide; AOS Bulletin Vol 86 #2 2017 photo fide; AOS Bulletin Vol 88 #3 2019 photo fide; AOS Bulletin Vol 88 #3 2019 as C montanum f praetertinctum photo fide; AOS Bulletin Vol 89 #1 2020 drawing fide

--------------------------------------------------------------------------------------------------------------------------

-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------