别名：slender meadow foxtail;鼠尾看麦娘;

科名：禾本科 Gramineae

属名：看麦娘属 Alopecurus

《中国植物志》第9(3)卷263页
  6.大穗看麦娘（台湾植物志）
  Alopecurus myosuroides Huds. Fl. Angl. 23. 1764; Ovczinn. in Kom. Fl. URSS 156. 1934: Ohwi in Bot. Mag. Tokyo 55: 359. 1941; Hitchc. Man. Grass. U. S. 358. f. 501. 1951; Bor, Grass. Burma Ceyl. Ind. Pakist. 392. 1960; Hsu in Taiwania 10: 231. 1971; 台湾禾草251. 图20. 1975; Tzvel. Poac. URSS 380. 1976; 台湾植物志5: 404. 1978. ——Alopecurus agrestis Linn. Sp. Pl. ed. 2, 1: 89. 1762; Hayata, Icon. Pl. Form. 7: 82. 1918; Honda in Journ. Fac. Sci. Univ. Tokyo sect. III. Bot. 3: 202. 1930.
  一年生。秆高至45厘米，直径约2毫米。叶片宽约3毫米；叶舌长约2毫米。圆锥花序圆柱形，长达8厘米；小穗长圆形，长4-5毫米；颖在基部稍连合，略短于小穗，脊上有短硬纤毛，具5脉；外稃与小穗等长，膜质，具5脉，芒自背面中部以下发出，外露；花药长约2毫米。颖果长圆形，包于稃中，长约2.5毫米。
  产我国台湾（台北）。在欧亚两洲的温带也有分布。模式标本采自欧洲。

《Flora of China》 Vol. 22 (2006)
Alopecurus myosuroides  Hudson
大穗看麦娘   da sui kan mai niang
Alopecurus agrestis Linnaeus.
Annual, tufted. Culms erect or geniculately ascending, up to 80 cm tall. Leaf sheaths smooth, glabrous, upper sheaths slightly inflated; leaf blades 3–16 cm, 2–9 mm wide, glabrous, abaxial surface smooth or scabrid, adaxial surface scabrid; ligule 2–5 mm. Panicle narrowly cylindrical, up to 10 cm, tapering toward apex, yellow-green, pale green, or purplish. Spikelets narrowly oblong, 4.5–7.5 mm; glumes leathery, punctate-scabrid, keels narrowly winged, wings shortly pilose below, scabrid above, lateral veins very shortly pilose near base, margins connate in lower 1/3–1/2, apices acute; lemma slightly longer than glumes, margins connate in lower 1/3–1/2, awned from near base, apex acute; awn exserted 4–8 mm from spikelet, geniculate. Anthers pale yellow, 2.5–4 mm. 2n = 14.
Fields, introduced. Taiwan (Taipei) [Kazakhstan, Kyrgyzstan, Pakistan, Russia, Tajikistan, Turkmenistan, Uzbekistan; SW Asia, Europe].
This species is adventive or introduced as a fodder grass in North America, Australia, and other temperate regions.