Tufted annual 1–6 dm; lvs flat, 1–2 mm wide; infl diffuse, often half as long as the entire plant, the capillary branches eventually widely spreading and themselves branched near the middle; glumes lanceolate, becoming purple, subequal, 1.6–2 mm, nearly glabrous on the keel; lemma very thin, often minutely papillose-scabrous in age, 1.2–1.6 mm, sharply veined, the truncate tip bearing 2 minute setae; awn usually present, inserted just below the lemma-tip, pale, very delicate, flexuous, to 10 mm; callus short-bearded; palea obsolete; 2n=28. Open woods, barrens, fields, and roadsides; Md. to O., Mo., and Kans., s. to Fla. and Tex., and reported as intr. in Mass. and Me.
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