Arethusa bulbosa Linnaeus. Phen: May-Jun. Hab: Sphagnous bogs and seepage swamps. Dist: NL (Newfoundland) and NL (Labrador) west to SK, south to NJ, DE, IN, and MN, and to NC and SC in the mountains, rare south of ME, MI, and MN.
ID notes: The lanceolate, plicate leaf (15-30 cm long, 2-4 mm wide) usually emerges after flowering, the flowering plant thus normally consisting (aboveground) of the solitary scape only. The lip is crested with fimbriate ridges, marked with yellow and purple.
Origin/Endemic status: Native
Synonymy: = C, F, FNA26, G, GW1, Il, K1, K3, K4, Mi, NE, NY, Pa, RAB, S, Va, W, Correll (1950), Luer (1975)