| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Orchidaceae | Liparis liliifolia | Large Twayblade, Mauve Sleekwort, Russet-witch, Brown Wide-lip Orchid | Moist forests, floodplains. | VT and ON west to MN, south to GA, n. AL, and AR; China. |  |
| Orchidaceae | Liparis loeselii | Fen Orchid, Loesel's Twayblade, Bog Twayblade, Yellow Wide-lip Orchid | Seepages at moderate to high elevations in the mountains, mucky bay swamps (dominated by Tamala palustris and Magnolia virginiana) at about sea level on the Outer Banks, wet meadows, and other moist, seepy habitats, especially over mafic or calcareous rocks or in other alkaline or circumneutral settings. | NS and QC west to NT and BC, south to ne. NC (Dare County), sw. NC, ec. AL, AR, KS, NE, and WA. |  |
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