Annual 3–8 dm, the culms erect, branched from the base and to some extent from the lower nodes; lvs 1–4 mm wide toward the base, tapering to a fine point, folded or involute, the sheaths often villous-margined; panicle loosely branched, 1–2 dm, with ascending branches; glumes subequal, 13–20 mm, including the short awn, the first one scabrous on the keel; lemma 9–12 mm; awns articulate with the lemma, scarcely united at base, loosely coiled and widely divergent when dry, subequal, 2.4–3.3 cm. Dry sand; Ill. to Nebr. and Tex.