Gentiana quinqueflora Lamarck var. occidentalis A. Gray, Manual, 359. 1848; Aloitis quinqueflora (Hill) Rafinesque subsp. occidentalis (A. Gray) Á. Löve & D. Löve; Gentianella occidentalis (A. Gray) Small; G. quinquefolia var. occidentalis (A. Gray) Small

Herbs: larger plants usually with short primary branching only. Flowers: calyx 5–15 mm, lobes linear-oblong to lanceolate or occasionally subfoliaceous, 3–8(–10) mm; corolla (15–)18–25 mm, lobes 4–8 mm. 2n = 36.

Flowering fall. Moist open woods, prairies, wet bluffs, open woods, roadsides; 200–600 m; Ont.; Ark., Ill., Ind., Iowa, Kans., Ky., Mich., Minn., Miss., Mo., Ohio, Tenn., Wis.