Echinochloa pithopus Clayton

Base unknown; culms 80 cm. high.. Leaf-blades 10–20 cm. long, 4–5 mm. wide, folded; ligule a line of hairs.. Inflorescence oblong to linear, 5–8 cm. long, the spikelets borne singly or in pairs in 2–4 rows on appressed racemes 1–3.5 cm. long.. Spikelets ovate-elliptic, 4–4.5 mm. long, scaberulous to spinulose, the basal callus produced into a plumply cylindrical stipe 1 mm. long; lower floret ♂, acute; upper lemma 4–4.5 mm. long, acute, its palea acute and lightly reflexed.