Spiranthes lacera var. gracilis
Native Orchids U.S. & Canada, 112. 1975.
Leaves usually absent at anthesis. Inflorescences loosely to very tightly spiraled, sometimes secund, flowers approximate, mostly without distinct space between proximal flowers (ratio of spike length/flower number less than 2.3), glabrous. Flowers: lip 4–7.5 mm, rounded at apex; central portion green with clearly defined, broad crisp white apron. 2n = 30.
Phenology: Flowering Jul–Oct(–Nov).
Habitat: Dry to moist meadows, prairies, barrens, open woods, dunes, old fields, roadsides, cemeteries, lawns
Elevation: 0–1100 m
N.S., Ont., Ala., Ark., Conn., Del., D.C., Ga., Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Mich., Minn., Mo., Ohio, Okla., N.H., N.J., N.Y., N.C., Pa., R.I., S.C., Tenn., Tex., Vt., Va., W.Va., Wis.
Hybrids of Spiranthes lacera var. gracilis with S. vernalis are known as Spiranthes ×intermedia Ames.