Cypripedium calceolus L. 1753 SUBSECTION Cypripedium Photo courtesy of Jan H. Larsen KJ Orchids Denmark

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Common Name The Limestone Loving Cypripedium

Flower Size 2" [5 cm]

Found in Great Britain, Norway, Sweden, Finland, Denmark, Beligium, Germany, Poland, Austria, Czechloslavakia, Hungary, Switzerland, Spain, France, Italy, Yugoslavia, Greece, Bulgaria, Romania, Ukraine, Russia, eastern Russia, Mongolia, China, Japan and Korea in part shade on moist alkaline substrates in scrub and open to dense woodlands at elevations up to 2000 meter as a small to medium sized, cool to cold growing terrestrial with a pubescent stem carrying 3 to 5, oval-lanceolate, slightly plicate, obtuse leaves that blooms in the spring and summer on a terminal, 14" [35 cm] long, 1 to 2, rarely 3, flowered inflorescence

Synonyms Calceolus alternifolius St.-Lag. 1880; Calceolus marianus Crantz 1769; Cypripedium alternifolium St.-Lag. 1880; Cypripedium atsmori C.Morren 1851; Cypripedium boreale Salisb 1796; Cypripedium cruciatum Dulac 1867; Cypripedium ferrugineum Gray 1821; Cypripedilon marianus (Crantz) Rouy 1894; Cypripedium microsaccos Kraenzl. 1913

References W3 Tropicos, Kew Monocot list , IPNI ; Schlechteriana Vol 2 No 2 1991 photo; AOS Bulletin Vol 61 No 5/442/444 1992 photo; AOS Bulletin Vol 65 No 11 1996 photo; Lindleyana Vol 15 No 4 2000; Lindleyana Vol 16 No 3 2001; Orchids of Europe, North Africa and the Middle east Delforge 2005; AOS Bulletin Vol 76 No 9 2007 photo; AOS Bulletin Vol 77 No 11 2008 photo