Perennial herb, tufted, 0.3-0.7 m high. Leaves: sheaths reddish with broad, whitish, scarious, indurated margins; blades rigid, 1.25-1.50 mm wide, shallowly C-shaped, apex obtuse. Culm scapose, rigid, flattened-terete, up to 2.5 mm in diam. Inflorescence a panicle 30-50 x 8-15 mm. Subtending bracts with bases only slightly dilated, distinctively dark reddish brown, extended apex green, leaf-like. Spikelets ± flattened, ± 6 x 1.5 mm, lower male, upper bisexual. Glumes: fertile lanceolate, ± 5 mm long, keel non-excurrent. Perianth of several slender bristles or absent. Flowering time Aug., Sept. Nutlet elliptic, 2.8-3.0 mm long, 3-angled (± globose), yellowish; style base pyramidal hispid, surface with angles thickened, otherwise minutely reticulate.
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Tufted perennial, 15-40 cm. Spikelets shining brown.