Culms erect or ascending, 3–8 dm, usually several from one base; sheaths keeled, usually loose, villous to pilose or glabrous; blades 5–25 cm × 3–10 mm, glabrous or pilose; racemes 2–6, spreading, 4–12 cm; spikelets borne singly, glabrous, planoconvex, obovate to elliptic, orbicular, or obovate, 2.4–3.4 mm, two-thirds to fully as wide; glume and sterile lemma 5-veined, the outer veins approximate near the margin; 2n=40, 80. Various habitats; se. Mass. to Pa., O., s. Ind., Mo. and Kans., s. to the Gulf. Abundant and variable. (P. angustifolium; P. circulare; P. longipilum; P. plenipilum)
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