Plants stoloniferous. Cauline leaves 25–110 × 3–17 mm. Peduncles filiform; bracts subulate, 4–26 mm. Phyllaries subulate; outer 0.8–1.7 × 0.3–0.6 mm; inner 1.8–2.3 × 0.2–0.7. 2n = 18.

Flowering Jul–Nov. Prairies, waste places, roadside ditches, woodland borders, sunny to semishaded, dry to wet; 10–200 m; Ala., Ark., Fla., Ga., Ill., La., Miss., Mo., N.C., Okla., S.C., Tex.