Trisetum scitulum Bor

This is a locally distributed, high-altitude species with a slender habit and large, brown, long-awned spikelets.

Perennial, loosely tufted. Culms erect from geniculate base, 12–80 cm tall, 1.5–2 mm in diam., glabrous, 2–3-noded. Leaf sheaths usually shorter than internodes, glabrous, margins joined near base; leaf blades flat, soft, 10–20 cm, 2–8 mm wide, adaxial surface scattered pilose; ligule 1–4 mm. Panicle lax, lanceolate in outline, 7–15 cm, gray-green, brown or purplish; branches 1–3 at basal node, capillary, flexuous, smooth, glabrous, up to 5 cm. Spikelets 6.5–9 mm, florets 1–3; rachilla filiform, villous; glumes unequal, narrowly lanceolate, lower glume 4.5–5.3 mm, upper glume 6–7.2 mm, apex finely acuminate; callus glabrous; lemmas 6.5–8 mm, firm, golden brown, scaberulous around keel, otherwise smooth, awned from upper 1/4–1/3, apex 2-toothed, teeth 2.5–3 mm, slenderly acuminate-aristulate; awn 9–14 mm, weakly geniculate, column twisted; palea 1/2–2/3 length of lemma, keels slightly convex, scabrid. Anthers 1–1.5 mm. Fl. Jul–Sep.

E. Himalaya (Nepal, Sikkim).

Sichuan, Xizang, Yunnan [Bhutan, India (Sikkim), E Nepal].

4400 m

Alpine scrub, meadows, gravel river banks; 4000–5000 m.

Avena flavescens J. D. Hooker (1896), not Linnaeus (1753).

Trisetum scitulum là một loài thực vật có hoa trong họ Hòa thảo. Loài này được Bor miêu tả khoa học đầu tiên năm 1956.

优雅三毛草（学名：Trisetum scitulum），为禾本科三毛草属下的一个植物种。