1. Orchid growing along streams or ponds of western North America having leafy stems and 1 greenish-brown and pinkish flower in the axil of each upper leaf
   "Stream orchids thrived along the creek bank";
   - chatterbox, giant helleborine, Epipactis gigantea

Derived forms: stream orchids

Type of: helleborine

Part of: Epipactis, genus Epipactis

Encyclopedia: Stream orchid