Annual 3–8 dm, the culms branched at base and lower nodes; lower sheaths villous, the upper glabrous or nearly so; blades 1–3 mm wide, involute at least when dry; panicle very lax and open, sparsely branched, 1–3 dm; glumes subequal, 20–28 mm, including the short awn, the first scabrous on the keel; lemma 11–14 mm, its awns about equal, united at base into a twisted column 7–13 mm, the free parts loosely coiled at base, about horizontal, 3–5 cm. Dry sterile soil, especially on dunes, along the coast from Mass. to Ga., and inland from Ind. and s. Mich. to Minn. and Io.
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