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Perennial, 0.25-1.00 m high, often mat-forming; rhizomatous and stoloniferous; basal leaf sheaths papery; culm geniculate. Leaf blade 20-300 x 2.0-12.0 mm, flat; ligule a fringed membrane or a fringe of hairs. Inflorescence a panicle, branches whorled. Spikelet 1.5-2.5 mm long, laterally compressed, awnless, glabrous, disarticulating above glumes; glumes 1-nerved; lower glume 1/4-1/3 as long as spikelet; upper glume as long as, or longer than spikelet. Floret 1; lemma similar in texture to glumes, membranous, often shining, 1-3-nerved. Flowering time Jan.-Apr.
Perennial, often mat-forming, 250-1000 mm high; rhizomes and stolons present; basal leaf sheaths papery; culm geniculate. Leaf blade 20-300 x 2.0-12.0 mm, flat, margins sometimes ciliate with tubercle-based hairs. Inflorescence whorled. Spikelet 1.5-2.5 mm long, pallid to greyish-green; glumes unequal, glabrous or minutely hispidulous; lower glume 1/4-1/3 as long as spikelet, apex obtuse or denticulate to acute; upper glume as long as or longer than spikelet, apex acute; lemma similar to upper glume; anther 0.9-1.2 mm long.
Spikelets 1.4–2.2 mm long, pallid to greyish-green or rarely purplish; inferior glume 1/4–1/2 the length of the spikelet, oblong to ovate (but widely variable even in the same panicle), nerveless, glabrous or minutely hispidulous, obtuse or denticulate to acute at the apex; superior glume (1/2)2/3 as long to as long as the spikelet, ovate, 1-nerved, glabrous or minutely hispidulous, acute at the apex; lemma as long as the spikelet or almost so, similar to the superior glume; anthers 3, 0.9–1.7 mm long.
Densely caespitose perennial, sometimes short-lived, often with stolons, sometimes with a short oblique rhizome; culms up to 100 cm tall, ascending to erect, usually branched; basal leaf sheaths chartaceous to subcoriaceous, glabrous on the back, pilose near the margins, compressed and flabellate, persistent; leaf laminas 1.5–30 cm × 2–8.5 mm, coarse, flat, folded or involute, glabrous or scaberulous on the surface, the margins cartilaginous, scabrid and sometimes ciliate with tubercle-based hairs.
Panicle 5.5–25 cm long, narrowly ovate to pyramidal; branches, or at least the lowermost, in a succession of whorls but often the upper whorls somewhat irregular, scaberulous, eglandular or with linear glands, the spikelets on short secondary branchlets, these spreading or appressed, confined to the distal part of the primary branches.
Perennial (often mat-forming), rhizomatous and stoloniferous up to 1 m high. Leaf blades 20-300 mm long, 2-12 mm wide, flat, basal leaf sheaths papery. Culms geniculate. Spikelets 1.5-2.5 mm long. Panicle whorled; lower glume a quarter to a third the spikelet length; upper glume as long as, or longer than spikelet.
Perennial, up to 1 m tall; mat-forming with stolons, sometimes rhizomes present. Leaves linear; ligule a fringe of hairs. Inflorescence an open panicle, lowest branches whorled. Spikelets 1.5-2.5 mm long, awnless, glabrous, 1-flowered; glumes unequal, the upper from 2/3 to as long as the spikelet.
Perennial; up to 1 m high; often mat-forming; rhizomatous and stoloniferous. Leaf blades 20300 x (2)3-12 mm; flat; basal leaf sheaths dull; papery. Flowers: panicle whorled; spikelets 1.5-2.5 mm long; lower glume 74-/3 spikelet length; upper glume as long as; or longer than spikelet.
Grain 0.8–1.2 mm long, elliptic, somewhat laterally compressed.
