Amerorchis rotundifolia (Banks) Hulten
Calopogon tuberosus (Linnaeus) Britt. var. tuberosus
Calypso bulbosa (Linnaeus) Oakes var. americana (R. Brown) Luer
Coeloglossum viride (Linnaeus) Hartman var. virescens (Muhlenberg) Luer
Corallorhiza maculata (Rafinesque) Rafinesque var. maculata
Corallorhiza maculata (Rafinesque) Rafinesque var. occidentalis (Lindley) Ames
Corallorhiza striata Lindley var. striata
Corallorhiza trifida Chatelain
Cypripedium parviflorum Salisb. var. makasin (Farwell) Sheviak
Cypripedium parviflorum Salisb. var. pubescens (Willdenow) Knight
Galearis spectabilis (Linnaeus) Rafinesque
Goodyera oblongifolia Rafinesque
Goodyera pubescens (Willdenow) R. Brown
Goodyera repens (Linnaeus) R. Brown
Liparis loeselii (Linnaeus) Richard
Listera convallarioides (Swartz) Nuttall
Listera cordata (Linnaeus) R. Brown var. cordata
Malaxis brachypoda (Gray) Fernald
Platanthera blephariglottis (Willdenow) Lindley var. blephariglottis
Platanthera clavellata (Michaux) Luer var. ophioglossoides (Fernald) P. M. Brown
Platanthera dilatata (Pursh) Lindley var. dilatata
Platanthera flava (Linnaeus) Lindley var. herbiola (R. Brown) Luer
Platanthera grandiflora (Bigelow) Lindley
Platanthera hookeri (Torrey) Lindley
Platanthera huronensis (Linnaeus) Lindley
Platanthera hyperborea (Linnaeus) Lindley var. hyperborea
Platanthera lacera (Michaux) G. Don
Platanthera macrophylla (Goldie) P. M. Brown
Platanthera obtusata (Banks & Pursh) Lindley
Platanthera orbiculata (Pursh) Lindley
Platanthera psycodes (Linnaeus) Lindley
Pogonia ophioglossoides (Linnaeus) Ker-Gawler var. ophioglossoides
Spiranthes casei Catling & Cruise var. casei
Spiranthes cernua (Linnaeus) L.C. Richard
Spiranthes lacera Rafinesque var. lacera
Spiranthes lucida (H. H. Eaton) Ames
Spiranthes romanzoffiana Chamisso
Last revised: Friday, September 13, 1996