Perennial plants 67.5–150 cm high; base thickened, pubescent or hirsute. Culms simple, glabrous; nodes bearded. Leaves glabrous or hispid with tubercle-based hairs; lower sheaths slightly longer than culm internodes; upper sheaths much shorter than culm internodes; blade to 37 cm long, 5–8.5 mm wide, scaberulous on nerves and scabrid-prickly on margins. Panicles dense to compact, 4–14 cm long, 1.5–6 cm wide. Glumes slightly unequal, 7.5–14 mm long, muticous to aristulate (awnlets 1.5–2.5 mm long), acuminate into a beak, pilose or hirsute with tubercle-based hairs on body or with upper or both glumes partly or entirely glabrous, sometimes tuberculate or smooth or scabrous; lower glume to 1 mm longer than upper glume, 9–11-nerved; upper glume (7–) 9–11-nerved. Florets shorter than or equal to glumes; lemma and palea slightly divergent or appressed. Lemma 5–9 mm long, attenuating into awn, 7-nerved, apically bisulcate (sometimes shortly), hirsute in lower 1/2–2/3 (or all over) with simple hairs reaching lemma apex or exceeding it by up to 5 mm, scabrous near apex; awn 1–30 mm long, usually curved or recurved. Palea 7.8–12 mm long (including beak or awnlets), elongated into 0.8–5 mm long beak (bifid into 2 awnlets 0.5–3 mm long); body of palea hirsute in lower 1/2–2/3, scabrous near apex. Caryopsis 2–3.3 mm long.
Usually in deep or shallow, sandy or loamy soils on gentle slopes and plains,in association with sandstone, laterite, granite or quartzite; often in moist alluvialsites such as drainage lines, valley floors, broad shallow depressions, andnear swamps and watercourses; also reported from humic clays, rocky slopes ofgorges and from outcrops.
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