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Perennial herb, 0.16-0.30 m high, sparsely tufted to long-rhizomatous. Leaf blades shorter than culm, rigid, folded or inrolled (V-or C-shaped), ± 0.6 mm wide. Culm filiform, ± 3-angled, smooth, ± 0.8 mm in diam. Inflorescence 25-30 mm long. Subtending bracts: lowest ± inconspicuous, with sheath absent, base expanded, membranous and short leaf-like blade. Spikelet bracts (glumes): female lanceolate, acuminate, 3.3-4.3 x 1.2-1.4 mm, golden-brown. Perigynium spreading at maturity, ± equalling bract, oblong-elliptic, ± 4 x 0.8-1.0 mm, 3-angled, nervose, green with rostrum margins golden-brown. Rachilla within 1st order female spikelets decreasing in complexity upwards, branched at base and bearing a variable number of 2nd order female and 1 male spikelet or absent. Flowering time Dec.-Mar. Nutlet oblong-elliptic, 2.5 x 0.9 mm, 3-angled, laterally concave.
Perennial herb, up to 0.14 m high, long-rhizomatous. Leaf blades < 1 mm wide, thick, ± U-shaped. Culm scapose, ± 3-angled, 0.7-1.2 mm in diam. Inflorescence spicate, up to 10 mm long. Bracts erect, leaf-like. Spike 1. Female bracts (glumes) lanceolate or oblong-lanceolate, 4-5 x 1.75-2.00 mm, keel terminating subapically or lowest ± excurrent. Perigynium spreading at maturity, shortly stalked, 5-6 x ± 0.5 mm, 3-angled in cross section, nervose, glabrous, green except for a brownish, castaneous, beak-like portion with whitish apex. Flowering time Dec. Nutlet oblong, ± 2-3 mm long, 3-angled.
