Densely tufted, 5–12 dm; blades flat or involute, 2–5 mm wide, the cauline ones relatively broad and usually flat, those of the innovations narrower and often involute; infl lax, 5–10 cm; glumes narrowly lanceolate, 11–18 mm; lemmas 6.5–10 mm, including the setaceous teeth (these 2.8–4.5 mm) villous at least on the margin with copious white hairs 2–3 mm; awn 11–18 mm; 2n=36. Var. sericea, with the sheaths villous and the lemmas villous on the back, occurs in dry sandy soil and pine woods, chiefly on the coastal plain, in e. Mass. and from s. N.J. to Ky., Fla., and La. Var. epilis (Scribn.) Blomq., with glabrous sheaths and very thin lemmas that are villous on the margins only (or also at base), occurs in bogs, stream-borders, and seeps from s. N.J. to Va. and Ga. (D. epilis)
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