Isotria medeoloides (Pursh) Rafinesque. Small Whorled Pogonia, Little Five-leaves. Phen: May-Jun. Hab: Acidic mesic to dry-mesic forests, in the mountains and upper Piedmont usually with Pinus strobus. Dist: Widespread (but very local) in ne. North America, from s. ME and MI south to c. and e. WV, w. VA, w. NC, e. TN, and n. GA.

Origin/Endemic status: Native

Other Comments: The reproductive biology of this species was studied by Vitt & Campbell (1997). Van Alstine et al. (1996) discuss the habitats of known occurrences in Virginia.

Synonymy: = C, F, FNA26, G, Il, K1, K3, K4, Mi, Mo1, NE, NY, Pa, RAB, Tn, Va, W, Correll (1950), Luer (1975); = Isotria affinis (Austin) Rydb. – S; = Pogonia affinis Austin

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