Thelepogon elegans Roth ex Roem. & Schult.

Coarse annual; culms 10–150 cm. high, erect, supported by prop roots.. Leaf-blades lanceolate, 4–20 cm. long, 5–30 mm. wide, cordate and often amplexicaul, glabrous or hispidulous, the margins finely pectinate ciliate.. Inflorescence composed of 2–17 racemes, the lower verticillate, the upper borne on a short common axis 1–5 cm. long; racemes 4–15 cm. long, very fragile.. Sessile spikelet 5–13 mm. long; lower glume narrowly ovate, prominently rugose; upper glume rugose across the back; upper lemma with an awn 1.5–2.5 cm. long.. Pedicel glabrous, a little longer than the sessile spikelet.. Fig. 174.