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FOC | Family List | FOC Vol. 22 | Poaceae | Trikeraia

2. Trikeraia oreophila Cope, Kew Bull. 42: 350. 1987.

山地三角草 shan di san jiao cao

Trikeraia tianshanica S. L. Lu & X. F. Lu.

Perennial, densely tufted. Culms 7–45 cm tall, 2–3-noded. Leaf sheaths glabrous, upper shorter than internodes; leaf blades stiff, involute, 3–12 cm, 1.5–5 mm wide, smooth or scaberulous; ligule 0.4–0.5 mm, obtuse. Panicle contracted, narrow, 1-sided, 2.5–8.5 × 1–1.5 cm; branches 1–2 per node, erect, up to 3.5 cm, scabrid. Spikelets green or yellowish tinged purple; glumes subequal, lanceolate, 9–14 mm, 5-veined, scabrid, narrowly acuminate; lemma ca. 10 mm, 5-veined, pilose, hairs ca. 2 mm, split almost to lower 1/3, lobes 4.2–7 mm, slenderly acuminate, lateral veins continued into lobes, sometimes excurrent as short mucros; awn 0.8–1.2 cm, geniculate near middle, scabrid, twisted below bend. Lodicules 2 or 3, ca. 1 mm. Anthers 1–1.5 mm. Fl. and fr. Jun–Sep.

Grassy hillsides, windy plains; 2800–5200 m. Xinjiang, Xizang [Bhutan, India (Sikkim), Nepal].


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