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FNA | Family List | FNA Vol. 26 | Orchidaceae | Pogonia

1. Pogonia ophioglossoides (Linnaeus) Ker Gawler, Bot. Reg. 2: plate 148. 1816.

Rose pogonia, adder’s-mouth, pogonie langue-de-serpent

Arethusa ophioglossoides Linnaeus, Sp. Pl. 2: 951. 1753; Pogonia ophioglossoides var. brachypogon Fernald

Plants 4–70 cm. Leaves: blade elliptic, narrowly lanceolate, lance-ovate, or oblong, 14–120 × 4–32 mm. Inflorescences: floral bracts conspicuous, foliaceous, 7–37 × 2–12 mm. Flowers solitary or 2-flowered raceme, pink or rarely white or bluish, gaping, showy; sepals oblong, oblong-elliptic, or narrowly lanceolate, 14–23 × 3–7 mm; petals elliptic to lance-obovate, 13–25 × 3–11 mm; lip spatulate, 12–25 × 4–10 mm, margins involute, lacerate; crest often white, yellow, or green toward base. Capsules erect, ellipsoid, 14–30 × 4–8 mm. 2n = 18.

Flowering spring--summer. Sphagnum bogs, poor fens, moist acidic sandy meadows and prairies, open wet woods, wet pine flatwoods, pine savannas, cypress swamps, sandy-peaty stream banks, seepage slopes, ditches, roadcuts, rarely calcareous fens; 0--1100 m; St. Pierre and Miquelon; Man., N.B., Nfld. and Labr. (Nfld.), N.S., Ont., P.E.I., Que.; Ala., Ark., Conn., Del., D.C., Fla., Ga., Ill., Ind., La., Maine, Md., Mass., Mich., Minn., Miss., Mo., N.H., N.J., N.Y., N.C., N. Dak., Ohio, Okla., Pa., R.I., S.C., Tenn, Tex., Vt., Va., W.Va., Wis.


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