云南耳稃草 yun nan er fu cao

Annual, tufted. Culms erect, unbranched or branching from lower nodes, 20–60 cm tall, 1–1.5 mm in diam., purplish red, nodes glabrous. Leaf sheaths smooth, glabrous, lower shorter than internodes; leaf blades linear, flat, 5–13 cm × 3–6 mm, abaxial surface glabrous, adaxial surface glabrous or scattered pilose; ligule ca. 0.7 mm. Panicle linear, 6–23 cm; branches erect, up to 8 cm, 3–4 at lower nodes; spikelets in pairs. Spikelets 3–5 mm, base shortly hairy; glumes equal or lower glume slightly shorter, glabrous, scabrid on veins, apex narrowly obtuse, awned; glume awns 0.5–3 mm; lemma obscurely veined, awned from 2-toothed apex, some spikelets in panicle with short straight awn, others geniculately awned; awn column ca. 2 mm, brown, bristle 7–9 mm. Fr. Oct.

* Roadsides, among rocks, wet places; ca. 1400 m. Yunnan (Menglian).