Arethusa

Arethusa bulbosa L. dragon's mouth Native — Threatened

Calopogon

Calopogon tuberosus (L.) B.S.P. tuberous grasspink Native — Watch-Listed

Corallorhiza

Corallorhiza trifida Chatelain pale coralroot, early coralroot Native

Cypripedium

Cypripedium acaule Aiton pink lady's slipper Native

Epipactis

Epipactis helleborine (L.) Crantz broad-leaved helleborine Introduced

Goodyera

Goodyera pubescens (Willd.) R.Br. downy rattlesnake plantain Native

Goodyera tesselata Lodd. checkered rattlesnake plantain Native

Isotria

Isotria verticillata (Muhl. ex Willd.) Raf. large whorled pogonia Native — Watch-Listed

Platanthera

Platanthera aquilonis Sheviak north wind bog orchid, northern green orchid Native — Watch-Listed

Platanthera blephariglottis (Willd.) Lindl. = Habenaria blephariglottis (Willd.) Hooker white fringed orchid, white fringed bog orchid Native — Watch-Listed

Platanthera clavellata (Michx.) Luer = Habenaria clavellata (Michx.) Spreng. green woodland orchid, little clubspur bog orchid Native

Platanthera grandiflora (Bigelow) Lindl. = Habenaria fimbriata (Aiton) R.Br. ex Ait.f. large purple fringed orchid, greater purple fringed bog orchid Native — Watch-Listed

Platanthera lacera (Michx.) G.Don = Habenaria lacera (Michx.) R.Br. ragged fringed orchid, green fringed bog orchid Native

Pogonia

Pogonia ophioglossoides (L.) Ker Gawler rose pogonia Native

Spiranthes

Spiranthes cernua (L.) L.C.Rich. nodding ladies' tresses Native

Spiranthes lacera (Raf.) Raf. northern slender ladies' tresses Native

Spiranthes ochroleuca (Rydb.) Rydb. = Spiranthes cernua var. ochroleuca (Rydb.) Ames yellow ladies' tresses Native

Spiranthes tuberosa Raf. = Spiranthes tuberosa var. grayi (Ames) Fern. little ladies' tresses Native — Watch-Listed