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

78e. Poa araratica subsp. altior (Keng) Olonova & G. Zhu, Fl. China. 22: 307. 2006.

高阿洼早熟禾 gao a wa zao shu he

Basionym: Poa attenuata Trinius var. altior Keng, Sunyatsenia 6: 57. 1941.

Culms densely tufted, erect, 35–45(–50) cm tall, uppermost node in lower 1/6. Leaf sheath shorter than internode, scabrid; blade short, hard, folded, rarely flat, both surfaces and margin scabrid; ligule 4–6 mm. Panicle contracted, 4–6 × 1–4 cm, branches 2 or 3 per node. Spikelets 3–4(–5) mm, florets 2–4, tinged with purple; rachilla pubescent, glumes (2–)2.8–3(–3.5) mm; lemma keel shortly villous for 1/2 of length, marginal veins for 1/3 length, area between veins minutely hairy for lower 1/3; callus webbed; palea minutely hairy proximally between keels. Anthers 1.3–2 mm. Fl. Jun.

* Grassy places; 2000–3400 m. Gansu, Sichuan, Xizang.

The type of Poa attenuata var. altior has culms too tall to be P. attenuata and seems to have similarities to P. glauca.


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