Slender, smooth, leafy tufts, sometimes sward-forming, 9-35-(50) cm, with delicately branched shining panicles. Leaf-sheath membranous, broader than leaf-blade, rounded, sparsely strongly ribbed, light brown, sometimes purplish. Ligule 1-4 mm, tapered to acuminate tip. Leaf-blade (3)-5-15-(20) cm × 0.3-0.6 mm diam., involute, filiform, flaccid, smooth, tip minutely scabrid. Culm erect, or geniculate at base, green or purplish, usually overtopping leaves, internodes glabrous. Panicle (4)-10-(12) cm, very lax, branches few, filiform, erect to spreading, very sparsely minutely scabrid, naked below, tipped by 1-few spikelets. Spikelets 2-3-(4) mm, shining, hyaline to light green to brownish. Glumes unequal, < spikelet, ± keeled, sparsely minutely prickle-toothed on midnerve and margins near tip; lower 0.5-2 mm, 1-nerved, narrow-to oblong-lanceolate, acute, upper 1.2-2.5 mm, (1)-3-nerved, elliptic-lanceolate or elliptic-oblong, acute to obtuse. Lemma 1.5-2.5 mm, ovate-oblong, hyaline, shining, irregularly 3-4-toothed, awnless or awn subapical to 1-(1.5) mm. Palea ≤ lemma, apex shortly bifid, keels minutely scaberulous. Callus hairs 0.2-0.7-(1) mm, ± sparse to dense. Rachilla hairs c. 0.5 mm, silky, ± dense. Anthers 0.3-0.7-(1) mm. Caryopsis 1-1.5 × 0.3-0.5 mm. 2n= 26.
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