刺毛尾稃草 ci mao wei fu cao

Panicum setigerum Retzius, Observ. Bot. 4: 15. 1786; Brachiaria setigera (Retzius) C. E. Hubbard; Urochloa cordata Keng ex S. L. Chen & Y. X. Jin.

Perennial from a knotty base. Culms rigid, decumbent, ascending to 1 m, nodes densely bearded. Leaf sheaths puberulous and with tubercle-based hairs, one margin ciliate; leaf blades lanceolate, 8–15 × 1.8–2.5 cm, pubescent, base cordate-amplexicaul, margins scabrous, pectinate-ciliate usually at least to the middle, apex acuminate; ligule ca. 2 mm, ciliate. Inflorescence axis 6–13 cm; racemes 6–12, 2–5 cm, ascending; spikelets usually paired, setose especially on pedicels. Spikelet ovate-lanceolate, 4–5 mm, densely pubescent, acuminate-cuspidate; lower glume ovate, ca. 1/5 spikelet length, triangular, subacute; upper glume (5–)7–9-veined; lower lemma slightly shorter than upper glume, staminate or sterile, 5–7-veined, palea well developed, keels very narrowly winged upward; upper lemma broadly elliptic, coriaceous, rugulose, mucro ca. 0.1 mm. Fl. and fr. Jul–Sep.

Forests. Guangdong, Hainan [India, Myanmar, Nepal, Sri Lanka, Thailand].