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

5a. Poa bactriana subsp. bactriana

荒漠早熟禾(原亚种) huang mo zao shu he (yuan ya zhong)

Culms 20–60 cm. Leaf blade 2–15 cm × 1–3.5 mm, surfaces and margins scabrid. Panicle loosely contracted, oblong, sometimes lobed, usually well exserted, 3–10 cm. Spikelets green or tips purple, (3–)4–7 mm, florets 2–4(–6); vivipary present in most spikelets; glumes unequal, lower glume 2–3 mm, 1-veined, upper glume wider, 3–3.5 mm, 3-veined; lemmas elliptic to lanceolate, 2.7–3.2 mm, abaxial surface glabrous, keel and marginal veins scabrid. Anthers 1.2–1.8 mm. Fl. and fr. Apr–May.

Mountainous areas, desert grasslands; 400–2700 m. Xinjiang [Afghanistan, Kashmir, Kazakhstan, Kyrgyzstan, Pakistan, Tajikistan, Turkmenistan, Uzbekistan].

The Chinese material all belongs to var. vivipara Tzvelev (Novosti Sist. Vyssh. Rast. 10: 96. 1973).


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