| Amerorchis | Amerorchis rotundifolia (Banks ex Pursh) Hulten | roundleaf orchid | ME | VT | ||||
| Aplectrum | Aplectrum hyemale (Muhl. ex Willd.) Torr. | adam and eve | VT | MA | CT | |||
| Arethusa | Arethusa bulbosa L. | dragon's mouth | ME | NH | VT | MA | CT | RI |
| Calopogon | Calopogon tuberosus (L.) B.S.P. | tuberous grasspink | ME | NH | VT | MA | CT | RI |
| Calypso | Calypso bulbosa (L.) Oakes | fairyslipper orchid | ME | NH | VT | |||
| Coeloglossum | Coeloglossum viride (L.) Hartman | longbract frog orchid | ME | NH | VT | MA | CT | RI |
| Corallorrhiza | Corallorrhiza maculata (Raf.) Raf. | summer coralroot | ME | NH | VT | MA | CT | RI |
| Corallorrhiza odontorhiza (Willd.) Nutt. | autumn coralroot | ME | VT | MA | CT | RI | ||
| Corallorrhiza trifida Chatelain | yellow coralroot | ME | NH | VT | MA | CT | RI | |
| Cypripedium | Cypripedium acaule Ait. | pink lady's slipper | ME | NH | VT | MA | CT | RI |
| Cypripedium arietinum Ait. f. | ramhead lady's slipper | ME | NH | VT | MA | |||
| Cypripedium pubescens Willd. | greater yellow lady's slipper | ME | NH | VT | MA | CT | ||
| Cypripedium reginae Walt. | showy lady's slipper | ME | NH | VT | MA | CT | ||
| Epipactis | Epipactis helleborine (L.) Crantz | helleborine | ME | NH | VT | MA | CT | |
| Galearis | Galearis spectabilis (L.) Raf. | showy orchid | ME | NH | VT | MA | CT | RI |
| Goodyera | Goodyera oblongifolia Raf. | western rattlesnake plantain | ME | VT | MA | |||
| Goodyera pubescens (Willd.) R. Br. ex Ait. f. | downy rattlesnake plantain | ME | NH | VT | MA | CT | RI | |
| Goodyera repens (L.) R. Br. ex Ait. f. | lesser rattlesnake plantain | ME | NH | VT | MA | CT | ||
| Goodyera tesselata Lodd. | checkered rattlesnake plantain | ME | NH | VT | MA | CT | RI | |
| Isotria | Isotria medeoloides (Pursh) Raf. | green fiveleaf orchid | ME | NH | VT | CT | ||
| Isotria verticillata Raf. | purple fiveleaf orchid | ME | NH | VT | MA | CT | RI | |
| Liparis | Liparis liliifolia (L.) L.C. Rich. ex Ker-Gawl. | brown widelip orchid | ME | VT | MA | CT | RI | |
| Liparis loeselii (L.) L.C. Rich. | yellow widelip orchid | ME | NH | VT | MA | CT | RI | |
| Listera | Listera auriculata Wieg. | auricled twayblade | ME | NH | VT | |||
| Listera australis Lindl. | southern twayblade | ME | VT | |||||
| Listera convallarioides (Sw.) Nutt. ex Ell. | broadlipped twayblade | ME | NH | VT | ||||
| Listera cordata (L.) R. Br. ex Ait. f. | heartleaf twayblade | ME | NH | VT | MA | |||
| Malaxis | Malaxis unifolia Michx. | green addersmouth orchid | ME | NH | VT | MA | CT | |
| Platanthera | Platanthera blephariglottis (Willd.) Lindl. | white fringed orchid | ME | NH | VT | MA | CT | RI |
| Platanthera ciliaris (L.) Lindl. | yellow fringed orchid | ME | NH | VT | MA | CT | RI | |
| Platanthera clavellata (Michx.) Luer | green woodland orchid | ME | NH | VT | MA | CT | RI | |
| Platanthera cristata (Michx.) Lindl. | crested yellow orchid | ME | NH | VT | ||||
| Platanthera dilatata (Pursh) Lindl. ex Beck | boreal bog orchid | ME | NH | VT | MA | CT | ||
| Platanthera flava (L.) Lindl. | palegreen orchid | ME | NH | VT | MA | CT | RI | |
| Platanthera grandiflora (Bigelow) Lindl. | greater purple fringed orchid | ME | NH | VT | MA | CT | RI | |
| Platanthera hookeri (Torr. ex Gray) Lindl. | Hooker's orchid | ME | NH | VT | MA | CT | RI | |
| Platanthera hyperborea (L.) Lindl. | northern green orchid | ME | NH | VT | MA | CT | RI | |
| Platanthera lacera (Michx.) G. Don | green fringed orchid | ME | NH | VT | MA | CT | ||
| Platanthera leucophaea (Nutt.) Lindl. | prairie white fringed orchid | ME | VT | |||||
| Platanthera obtusata (Banks ex Pursh) Lindl. | blunt bog orchid | ME | NH | VT | MA | |||
| Platanthera orbiculata (Pursh) Lindl. | large roundleaved orchid | ME | NH | VT | MA | CT | RI | |
| Platanthera psycodes (L.) Lindl. | lesser purple fringed orchid | ME | NH | VT | MA | CT | RI | |
| Pogonia | Pogonia ophioglossoides (L.) Ker-Gawl. | snakemouth orchid | ME | NH | VT | MA | CT | RI |
| Spiranthes | Spiranthes casei Catling & Cruise | Case's ladiestresses | ME | NH | VT | |||
| Spiranthes cernua (L.) L.C. Rich. | nodding ladiestresses | ME | NH | VT | MA | CT | RI | |
| Spiranthes lacera (Raf.) Raf. | northern slender ladiestresses | ME | NH | VT | MA | CT | RI | |
| Spiranthes lucida (H.H. Eat.) Ames | shining ladiestresses | ME | NH | VT | MA | CT | RI | |
| Spiranthes romanzoffiana Cham. | hooded ladiestresses | ME | NH | VT | MA | |||
| Spiranthes tuberosa Raf. | little ladiestresses | ME | VT | MA | CT | RI | ||
| Spiranthes vernalis Engelm. & Gray | spring ladiestresses | ME | NH | VT | MA | CT | RI | |
| Tipularia | Tipularia discolor (Pursh) Nutt. | crippled cranefly | MA | |||||
| Triphora | Triphora trianthophora (Sw.) Rydb. | threebirds | ME | NH | VT | MA | CT |
Last Update: 1/4/97
Name: Ray Phillips
Email: rbphilli@Colby.edu