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

25. Agrostis turkestanica Drobow, Fl. Uzbekistan. 1: 537. 1941.

北疆剪股颖 bei jiang jian gu ying

Agrostis vinealis subsp. turkestanica (Drobow) Tzvelev.

Perennial, densely tufted. Culms slender, slightly geniculate at base, 20–35 cm tall, ca. 1 mm in diam., 2-noded. Leaves mainly crowded in basal tuft; leaf sheaths lax, smooth, longer than internodes; leaf blades setaceous, involute or flat, 3–4 cm × 0.8–1 mm; ligule 1.5–3 mm, apex rounded. Panicle contracted, linear-oblong, 4–9 cm; branches 1–3 per node, ca. 2 cm, smooth or scabrid. Spikelets 2–2.2 mm, dull purple; glumes lanceolate, subequal or lower glume slightly longer, lower glume aculeolate along keel, apex acute; lemma ca. 1.9 mm, distinctly 5-veined, awned from upper 2/3–4/5, apex obtuse or subrounded; awn weakly geniculate, 2.5–3 mm; palea ca. 0.2 mm. Anthers ca. 1.2 mm. Fl. and fr. Aug–Sep.

River valleys, roadsides; 2300 m. Xinjiang [Kazakhstan, Kyrgyzstan, Tajikistan, Uzbekistan; SW Asia (NE Iran)].

This is a regional variant from the Agrostis vinealis complex, with a densely tufted habit, fine leaf blades, and a contracted panicle.


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