bogs, swamps and rich woods
30-70 cm, erect stem
lip petal about 5 cm long; upper petals 2, spirally twisted; sepals, 1 above lip, 2 united below lip; subtended by leafy bract; ovary inferior; 1 style; stamens 2; staminodes 1
many seeded capsule
alternate; entire; sessile; reaching 20 cm in length; reaching 10 cm wide
Native American used roots for medicinal purposes; being almost wiped out by collectors, it is now too rare to be used medically; The classification of native C. calceolus has not been settled, depending on what sources are used, there are several recognized varieties or varieties are separated into species, the Flora of North America lists 2 North American species, C. parviflorum and C. pubescens.
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