疏穗竹叶草 shu sui zhu ye cao

Culms slender, 30–60 cm tall, glabrous. Leaf sheaths glabrous except for ciliate margins; leaf blades linear-lanceolate to ovate-lanceolate, 5–15 × 0.4–3.5 cm, glabrous on both surfaces; ligule membranous, ciliolate. Inflorescence axis 20–25 cm, glabrous or puberulous; racemes 5–8, 6–10 cm. Spikelets borne singly, ovate-lanceolate; glumes both awned; lower glume awn ca. 10 mm, upper glume awn 1/5–1/2 length of awn of lower glume; lower lemma equaling spikelet, 7–9-veined, dorsally puberulous, margins ciliate, awn 1–2.5 mm, lower palea absent; upper lemma papery or coriaceous, smooth, mucro 0.5–1 mm. Fl. and fr. Sep–Nov.

Undergrowth in moist forests on hillsides, moist places in open forests. Fujian, Guangdong, Hainan, Taiwan, Yunnan [Japan, N Vietnam].

This species is sometimes regarded as a variant of Oplismenus compositus.