Fimbristylis puberula var. puberula
Plants with culm bases thickened, contiguous; rhizomes of attached culm bases, knotty, stout, covered with dark fibers and chaff from old leaf-bases. Leaves: leaf-sheaths distally with at least some hairs; blades with margins distantly to closely scabrid, surfaces glabrous or densely hirtellous. Fertile scales totally or distally puberulent.
Phenology: Fruiting late spring–summer.
Habitat: Moist clays to sands or sandy peats, in prairies, savannas, glades, pinelands, acidic to basic sites
Elevation: 0–1000 m
Ont., Ala., Ark., Del., Fla., Ga., Ill., Ind., Kans., Ky., La., Md., Mich., Miss., Mo., Nebr., N.J., N.Y., N.C., Ohio, Okla., S.C., Tenn., Tex., Utah, Va.