昆仑猬草 kun lun wei cao

Culms 40–60 cm tall, 3- or 4-noded, smooth, glabrous at nodes. Leaf sheath shorter than internode, glabrous; ligule very short to absent; leaf blade green, linear-lanceolate, 5–7 × 0.2–0.5 cm, abaxially glabrous to scabrous, adaxially glabrous, base subauriculate, apex acuminate; leaf blade of innovation shoot narrower, narrowly linear. Spike dense, to 5 cm; rachis glabrous. Spikelets 2 per node, distichous, fragile, with 2(or 3) florets; proximal florets bisexual, distal ones unisexual. Glumes subulate, unequal, 2–5 mm, scaberulose to minutely pubescent. Lemma separated from glume by a short internode, linear-lanceolate, 6–9 mm, eventually deciduous; awn subflexuose, 1–1.2 cm, scabrous, inconspicuously veined. Palea linear-oblong, 2-keeled, glabrous, ciliolate along keels. Caryopsis elliptic-oblong, ca. 5 mm.

* Near lakes; ca. 4500 m. Qinghai (Qinghai Hu).