A low bog orchis with two light-green, shining, elliptic or elliptic-lanceolate leaves, 2 to 6 inches long, one-half to 2 inches wide and obtuse, arising with the short stem from a solitary bulb which, with the base of the stem, is sheathed by several scales and the remains of leaves of former seasons; flowers greenish yellow, about one-fourth of an inch long, in a terminal, loosely flowered raceme; petals linear, somewhat reflexed; lip obovate, pointed, a little shorter than the petals and sepals, its tip incurved; capsules about one-half of an inch long, wing-angled.
In wet thickets, springy banks, and bogs or boggy meadows, Nova Scotia to Saskatchewan, south to Alabama and Missouri. Flowering from late May to July and sometimes later.
Memoir 15 N. Y. State Museum
B. Fen Orchis; Loesel' S Twayblade - Liparis loeselii