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Flora of Taiwan | Family List | Orchidaceae

Cephalanthera L. C. Rich.


Terrestrial herbs with short rhizomes and fibrous roots. Stem erect, sometimes flexuous, leafy. Leaves cauline, sessile, plicate, sheathing at base, more or less arranged in 2 rows. Raceme or spike terminal, with lax or sub-dense flowers, bracteate; bracts usually decreasing in size upwards. Flowers suberect, sepals and petals subsimilar, free, connivent; lip included, shorter than sepals and petals, erect from base of column, 3-lobed in outline when expanded, divided into a hypochile and epichile through a middle thin constricted area, hypochile concave or saccate at base, with erect side lobes embracing column, epichile hinged to hypochile, subspreading, usually ribbed above; column long, erect, semiterete; anther erect, large, hinged to top of column by a short stalk, extending beyond rostellum; pollinia 2, soft and mealy, 2-partite, without caudicle or viscidium; stigma broad, entire; rostellum short or obscure. Capsule erect.

About 12 species, widespread in the north temperate regions and extending to the Himalaya and North Africa. One species in Taiwan.

Lower Taxon

Related Synonym(s):


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