Description
Annual, erect, non-stoloniferous, 50– 80 cm tall herbs. Culms glabrous, smooth with shorter internodes towards base, longer above, lower nodes never rooting. Leaves disticous, markedly striate, 10–17 cm long, flat, narrowly linear, base rounded or subcordate; venation parallel, midrib prominent, minutely puberulous, margins beset with markedly bulbous bristles or cilia, upto almost 1/3 of length, leaf-sheath tightly enclosing the internode, glabrous, ligule small, reduced, memberanous, hyaline, bearing bearded of hairs. Peduncle 20–40 cm long, terete, bearded at curved apex. Inflorescence a solitary, linear spikes, 2-3 cm long, hairy at base, pedicel ca 0.5 mm. Spikelets on one side of rachis, hairy at base, projected into a narrow bare subulate tip; spikelets ca 3 mm long, densely crowded at base with 2-unequl, persistent glumes, green turning brown at maturity. Lower glume ovate, acute when flattened, 1.5– 2.7 mm long, strongly compressed, hayline except from the green keel-nerve which is scabrid. Upper glume elliptic-ovate, ± 2 mm long, hyaline, keel-nerve scabrid that prolonged into an awn. Lemma ovate to broadly ovate lanceolate when flattened, 2.5–3 mm long, acute, terminate into slightly curved awn. Paleas ovate, 2-keeled, keel narrowly or broadly winged, 2–2.5 mm long, ciliate. Stamens 3, anthers bithecous, 3–4 × 1.6–2.7 mm long, yellow. Ovary superior with single locule; style-arms 2, stigma feathery. Caryopsis obovate-globose, or dome shaped ca 1-1.5 mm across, rugose, light brown or reddish brown.