Perennial herb, tufted, 0.3-0.4 m high. Leaves: sheaths light brown, old outer sheaths cancellate; blades setaceous, 0.5 mm wide, C-shaped. Culm nodose, ± filiform, 0.7 mm in diam. Inflorescence a narrow, interrupted, erect panicle 75-125 mm long, with 1 or 2 branches from each of upper (nearly all) nodes of culm, each sparsely re-branched and bearing a few spikelets. Subtending bracts sheathing culm, sheaths dark brown; blades leaf-like, green. Spikelets elliptic, 3.5 x 1.8 mm; flowers 2, lower male, upper bisexual. Glumes: fertile boat-shaped with obtuse apices, ± 3 mm long, keel non-excurrent. Perianth of ± 6 short, feathery, linear bristles. Flowering time Mar.-May. Nutlet elliptic, ± 2.2 mm long, mottled reddish brown; style base large, pyramidal, surface ± smooth.
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Tufted perennial, 30-45 cm. Spikelets brown.