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SPECIES
The Pink Bog Mat Orchids
Pogonia ophioglossoides: rose pogonia
Calopogon tuberosus: grass pink
Arethusa bulbosa: dragon’s mouth
Lady Slippers
Cypripedium acaule: pink lady slipper
Cypripedium parviflorum: large yellow lady slipper
Cypripedium reginae: showy lady slipper
Lady Tresses
Spiranthes arcisepala: Appalachian ladies’ tresses
Spiranthes casei var. casei: Case’s ladies’ tresses
Spiranthes cernua: nodding ladies’ tresses
Spiranthes incurve: Sphinx ladies’ tresses
Spiranthes lacera: northern slender ladies’ tresses
Spiranthes lucida: shining ladies’ tresses
Spiranthes ochroleuca: yellow ladies’ tresses
Spiranthes odorata: marsh ladies’ tresses
Spiranthes ovalis var. erostellata: October ladies’ tresses
Spiranthes romanzoffiana: hooded ladies’ tresses
Spiranthes sheviakii: old field ladies tresses
Platantheras
Platanthera aquilonis: green bog orchid
Platanthera blephariglottis var. blephariglottis: white fringed orchid
Platanthera clavellata: little club spur orchid
Platanthera dilatata var. dilatata: white bog orchid, bog candle
Platanthera flava var. herbiola: northern tubercled orchid
Platanthera grandiflora: large purple fringed orchid
Platanthera huronensis: bog orchid
Platanthera lacera: ragged fringed orchid
Platanthera macrophylla: large-spurred round-leaved orchid
Platanthera obtusata: blunt-leaved orchid
Platanthera psycodes: lesser purple fringed orchid
Twayblades
Neottia cordata: heartleaf twayblade
Neottia bifolia: southern twayblade
Liparis loeselii: fen twayblade
Coralroot Orchids
Corallorhiza maculata var. maculate: late spotted coralroot
Corallorhiza maculata var. occidentalis: early spotted coralroot
Corallorhiza odontorhiza var. odontorhiza: autumn coralroot
Corallorhiza striata var. striata: striped coralroot
Corallorhiza trifida: early coralroot
Rattlesnake Plantain Orchids
Goodyera pubescens: downy rattlesnake plantain
Goodyera tesselata: checkered rattlesnake plantain
Adder Mouth Orchids
Malaxis monophyllos var. brachypoda: North American white adder’s mouth
Other Orchid Species
Galearis spectabilis: showy orchis
Introduced
Epipactis helleborine: helleborine orchid
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Spiranthes incurva
: Sphinx Ladies’ Tresses
Photos courtesy of Bard Prentiss
Photos courtesy of Bard Prentiss