Cypripedium calceolus L.

Cypripedium calceolus

Family	Orchidaceae
Subfamily	Cypripedioideae (also placed in Cypripediaceae)
Tribe	Cypripedieae
Subtribe	Cypripediinae
Scientific name	Cypripedium calceolus L.
Synonyms	Calceolus alternifolius Saint-Lager; Calceolus marianus Crantz; Cypripedilon marianus (Crantz) Rouy; Cypripedium alternifolium Saint-Lager; Cypripedium atsmori C. Morren; Cypripedium boreale Salisbury; Cypripedium calceolus L. forma biflorum Rouy; Cypripedium calceolus L. forma triflorum Rouy; Cypripedium calceolus L. var. citrina B. Hergt; Cypripedium calceolus L. var. viridiflora M. Schulze; Cypripedium cruciatum Dulac; Cypripedium ferrugineum Gray; Cypripedium microsaccos Kränzlin
Common name	(Japanese common name) karafuto-atsumori-sou (カラフトアツモリソウ, 樺太敦盛草 [meaning: Sakhalin atsumori-sou (atumori-sou = Cypripedium macranthos)])
	(Chinese common name) shao lan (杓兰)
	(English common name) Lady's-slipper
Distribution	(Japan) Hokkaido
Distribution	(Other nations) Russia, Korea, China, Europe, Canada, USA
Chromosomal number	2n=20
Description	Plants 20-45cm tall. Leaves ca. 7-15cm long. Flowers yellow, ca. 3-4cm long, flowering in June to July. Terrestrial. Perennial plants.
Reference	Cypripedium calceolus L.
	Cypripedium calceolus Linnaeus
	Cypripedium calceolus L.
	Cypripedium calceolus L. 1753
	Identity of Cypripedium calceolus (Orchidaceae) in Rebun Island: Comparative DNA analysis of related species
	Flower visitors and pollinators of the lady's slipper orchid Cypripedium calceolus in an area protected for C. macranthos var. rebunense
	Genetic Analyses of Genus Cypripedium Found in Northern Japanese Islands and Related Species Endemic to Northeast China
Note	Rare species.
Note	Photos below are those of an orchid which is a clone of a cultivated plant (Chinese type).


April 2010 at my home	April 2010 at my home	April 2010 at my home


April 2010 at my home