Orchids of the Columbia
River Gorge:
Calypso, Fairy Slipper, Fairy Slipper Orchids: Calypso bulbosa var. occidentalis (Synonym: Calypso bulbosa ssp. occidentalis)
Phantom Orchid: Cephalanthera austiniae (Synonyms: Chloraea austiniae, Eburophyton austiniae )
Coralroots: The Genus Corallorhiza
Lady Slippers: The Genus Cypripedium
Giant Hellborine, Stream Orchid: Epipactis gigantea (Synonyms: Amesia gigantea, Epipactis gigantea f. citrina, Epipactis gigantea f. rubrifolia, Helleborine gigantea)
Giant Rattlesnake Plantain, Green-leaf Rattlesnake-plantain, Rattlesnake Plantain, Western Rattlesnake Plantain: Goodyera oblongifolia (Synonyms: Goodyera decipiens, Goodyera oblongifolia var. reticulata, Peramium decipiens, Peramium menziesii)
Twayblades: The Genus Neottia (formerly the Genus Listera)
Rein Orchids: The Genus Piperia (formerly Habenaria)
Bog Orchids: The Genus Platanthera (formerly Habenaria)
Ladies' Tresses: The Genus Spiranthes