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

2. Phalaris aquatica Linnaeus, Cent. Pl. 1: 4. 1755.

草 shui ge cao

Perennial, tufted. Culms 50–150 cm tall, often bulbously thickened at base. Uppermost leaf sheaths not inflated; leaf blades 3–8 mm wide; ligule 3–7 mm. Panicle spikelike, cylindrical, 1.5–11 cm, sometimes lobed at base. Spikelets elliptic-oblong; glumes 5–7 mm, winged, wing margin entire, apex acute; sterile lemma 1(–2), subulate, 0.2–2.2 mm, pubescent, second lemma (when present) up to 0.5 mm; fertile lemma lanceolate, 3–4.6 mm, densely pubescent. Anthers 3–3.5 mm. 2n = 28.

Introduced for grazing; Yunnan [Pakistan (introduced); N Africa, SW Asia, S Europe].

This species is widely cultivated as a pasture and forage grass in many parts of the world. It is best suited to upland areas with high rainfall.


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