Erect, bluish green or light green to pale brownish green, stiff, dense, very leafy tufts, (6)-10-50 cm, with uppermost leaves usually overtopping culms; branching intravaginal. Leaf-sheath glabrous, firmly membranous, striate. Ligule 0.6-3 mm, obtuse or truncate, or sometimes tapered centrally and acute, glabrous, entire. Leaf-blade 5-25 cm × 5-10 mm, folded, or sometimes almost flat and wider, abaxially glabrous, adaxially shallowly ribbed, ribs sparsely scabrid; margins scabrid, tip smooth, ± firmly acute, sometimes subobtuse and ± apiculate. Culm usually hidden by sheaths, internodes glabrous. Panicle ± overtopped by leaves, linear-lanceolate, erect, contracted, dense; branches stiff, erect, sometimes ± spreading at maturity. Spikelets (3)-5-9 mm, 2-5-flowered, bluish green or sometimes purplish. Glumes ± unequal, narrow-lanceolate to elliptic-oblong, subacute; lower 1.5-3.6-(4.2) mm, 1-3-nerved, upper 2-4.5-(5) mm, 3-5-nerved. Lemma 3-5 mm, 5-7-nerved, elliptic-oblong, usually with a few hairs at base and on nerves near base or to c. midway. Palea ≤ lemma. Rachilla 0.8-1.5-(1.8) mm. Anthers (0.6)-0.8-1.5 mm. Caryopsis (1.5)-1.8-2.6 × 0.4-0.8 mm.