Helleborine is the common name for a number of species of orchid. It does not correspond to any currently used taxonomic category. Some of the plants called helleborines are classified in the genus Epipactis, some in genus Cephalanthera. A genus Helleborine was formerly recognised but has now been absorbed into the Grass pink genus Calapogon. ... Found on http://en.wikipedia.org/wiki/Helleborine
any member of either of two similar genera of orchids (family Orchidaceae): Cephalanthera, with about 14 north-temperate species, and Epipactis, ... Found on http://www.britannica.com/eb/a-z/h/34
One of several temperate Old World orchids, including the marsh helleborine (E. palustris) and the hellebore orchid (E. helleborine) introduced to North America. (Genera Epipactis and Cephalanthera, family Orchidaceae.) Found on https://www.encyclo.co.uk/local/21221