Cephalanthera damasonium
Encyclopedia
The White Helleborine (Cephalanthera damasonium) is a species of orchid. It is the type species
Type species
In biological nomenclature, a type species is both a concept and a practical system which is used in the classification and nomenclature of animals and plants. The value of a "type species" lies in the fact that it makes clear what is meant by a particular genus name. A type species is the species...

 of the genus Cephalanthera
Cephalanthera
Cephalanthera , abbreviated Ceph in horticultural trade, is a genus of mostly terrestrial orchids. Members of this genus have rhizomes rather than tubers. About 15 species are currently recognised, several of them common in Europe, for example the Sword-leaved Helleborine C. longifolia...

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