鸭毑草(原变种) ya jie cao (yuan bian zhong)

Annual or perennial. Culms erect or decumbent at base, up to 90(–150) cm tall. Leaf blades 10–20 × 0.4–1.2 cm, usually glabrous. Spikelets single, usually suborbicular, 2.5–3 mm; upper glume 7–13-veined, lower lemma 7–9-veined, veins often concolorous with back; upper lemma dark brown at maturity. Fl. and fr. May–Sep. 2n = 40.

Roadsides, weedy places, often on damp soils. Guangxi, Hainan, Taiwan, Yunnan [India, tropical SE Asia].

An annual form is cultivated in India as a cereal (Kodo Millet).