Calypso, Fairy Slipper Orchid, Lady Slipper Orchid: Calypso bulbosa var. occidentalis (Synonym: Calypso bulbosa ssp. occidentalis)
Phantom Orchid: Cephalanthera austiniae (Synonyms: Chloraea austiniae, Eburophyton austiniae)
Frog-orchis, Long-bracted Orchid: Coeloglossum viride (Synonym: Habenaria viridis)
The Coral Roots: The Genus Corallorhiza
The Lady's Slippers: The Genus Cypripedium
Giant Helleborine: Epipactis gigantea
Rattlesnake Plantain: Goodyera oblongifolia
The Twayblades: The Genus Neottia (fomerly the Genus Listera)
The Bog and Rein Orchids: The Genus Platanthera (formerly the Genera Habenaria and Piperia)
Ladies'-tress Orchids: The Genus Spiranthes