Coarse annual to 2 m high, glabrous. Leaf blades 1.5–4 cm broad, auriculate, undulate towards base. Inflorescences axillary, of cylindrical spike-like racemes, dwindling to sterile spikelets towards apex; racemes 3 or 4, cylindrical, stiff, 8–15 cm long, 3–5 mm diam., arising from very slightly inflated leaf sheaths. Spikelets paired, each 1-flowered, sunk in pockets on rachis except at anthesis, lower spikelet sessile, fertile, upper spikelet pedicellate, sterile, with pedicel fused to raceme rachis. Glumes of lower spikelet equal, rounded-obtuse to acute, 6.5–7.5 mm long, 2-keeled, coriaceous; keel margin minutely serrulate. Glumes of upper spikelet both similar, 4.5–5.5 mm long. Lemma of lower spikelet subequal to glumes, acute, marginally hyaline.
Home