Cypripedium japonicum Thunb. 1784 SECTION Flabellinervia Photo courtesy of Dr. Clark Riley and his Cypripedium Page

Flower in situ in Japan

Plants ensitu in Japan

Photos courtesy of Natsui and his Japanese Native Plant Page

Full shade Cool Spring

Common Name The Japan Cypripedium - In Japan - Kumagae-So - In China Shan Mai Shao Lan

Flower Size 3.6" to 4" [9 to 10 cm]

Found in Japan, Taiwan and China in humus rich soils in forests and on shady slopes along ravines in bamboo at elevations of 1000 to 2000 meters as a small to medium sized, cool growing terrestrial with an erect 4 to 6" [10 to 15 cm] long stem carrying 2, opposite, orbicular, plicate, serrulate margined leaves that flowers in the spring on an erect, terminal, densely villose, 3" [7.5 cm] long, single flowered inflorescence with a leafy, rhombic-ovate bract

Synonyms Cypripedium cathayenum S.S.Chien 1930; Cypripedium japonicum var. glabrum M.Suzuki 1980

References W3 Tropicos, Kew Monocot list , IPNI ; Icones plantarum formosanarum nec non et contributiones ad floram formosana Hayata 1912; Die Orchideen Schlechter 1915; Atlas des Orchidees Cultivees Constantin 1920 drawing fide; AOS Bulletin Vol 29 No 3 1960 photo; Encyclopedia of Cultivated Orchids Hawkes 1965; Die Orchideen #4 13-16 tafel 5 Rudolph Schlechter 1971 photo ok; Orchid Digest Vol 48 No 1 1984 photo fide; Native Orchids of China in Colour Singchi, Zhanhuo and Yibo 1999 photo fide; Rudolf Schlechter Die Orchideen Lieferung 40 2000; Native Orchids of Shaanxi Shaanxi Science & Technology Press 2007 photo fide; A Field Guide to the Orchids of China Singchi, Zhongjian, Yibo, Xiaohua and Zhanhuo 2009 photo fide; Flora of China Vol 25 Zhengyi, Raven & Deyuan 2009; Flora of China Vol 25 Illustrations Zhengyi, Raven & Deyuan 2010 drawing fide;

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