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Mat-forming perennial 150-430 mm high; rhizomes long, much branched; cauline leaves usually much longer than basal leaves. Leaf blade 40-120 x to 3 mm, broadly triangular, margins conspicuously white cartilaginous; apex tapering to a fine point. Inflorescence dichotomously branched; axils with a distinct pulvinus, hairless; spike-lets solitary at branchlet apex. Spikelet 1 to 2 mm long; glumes unequal, apices obtuse; lower glume 2/5-3/5 as long as spikelet; upper glume 2/3-4/5 as long as spikelet; lemma as long as spikelet, ovate-elliptic; anther 1.2-1.9 mm long.
Spikelets 1.3–2(2.5) mm long, pallid; glumes unequal, ovate to elliptic, hyaline, nerveless, glabrous, obtuse at the apex, the inferior 2/5–3/5 the length of the spikelet, the superior 2/3–4/5 the length of the spikelet or more (but very rarely as long as it); lemma as long as the spikelet, hyaline, 3-nerved, ovate-elliptic, obtuse at the apex; anthers 3, (0.5)0.7–1.2 mm long.
Mat-forming perennial, rhizomatous (rhizome long and much-branched), up to 430 mm tall. Leaf blades 40-120 mm long, up to 3 mm wide, cauline leaves usually much longer than basal leaves, leaf tips tapering to a fine point. Spikelets 1-2 mm long. Panicle dichotomously branched, axils without hairs; spikelets solitary on branchlet tips.
Perennial; up to 0.4 m high; mat-forming; rhizome long and much branched. Leaf blades 40-120 x 3 mm; broadly triangular; tapering to a fine point; cauline leaves usually much longer than basal leaves. Flowers: panicle dichotomously branched; axils without hairs; spikelets 1-2 mm long; solitary on branchlet apices.
Panicle 7–16 cm long, ovate to ovate elliptic, very diffuse; primary branches not in whorls, subdichotomously branched, the branchlets and pedicels capillary, smooth, eglandular, widely diverging, with a distinct pulvinus in the axils, this quite glabrous, the spikelets evenly distributed.
Grain 1.3–2(2.5) mm long, obovate.
