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13. Puccinellia filifolia (Trinius) Tzvelev, Novosti Sist. Vyssh. Rast. 1964: 18. 1964.
线叶碱茅 xian ye jian mao
Colpodium filifolium Trinius, Mém. Acad. Imp. Sci. Saint-Pétersbourg, Sér. 6, Sci. Math., Seconde Pt. Sci. Nat. 4, 2(1): 70. 1836.
Perennial, densely tufted, tillers very numerous. Culms erect, 20–30 cm tall, 0.7–1.5 mm in diam. Ligule 0.6–2 mm; leaf blades conduplicate, setaceous, 2–5 cm, 0.3–1 mm wide. Panicle spreading, 3–8 cm; branches 2 or 3 per node, 2–6 cm, thin, smooth. Spikelets 2.5–4 mm, usually tinged with purple; florets 2–4; glumes obtuse, lower glume 0.5–1 mm, upper glume 1–1.5 mm; lemmas 1.6–2 mm, glabrous or subglabrous; palea keels smooth; anthers 0.9–1.1 mm. Fl. May–Jun.
Sandy saline places; near sea level to 500 m. Nei Mongol (near Chailar) [Mongolia].
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