稗Echinochloa crusgali (Linn.) Beauv.

别名：子;野稗;马绊草;子草;奥存－好努格;扁扁草;风稗子;无芒稗;水子;水稗草;稗子草;稗子;水稗;水稗子;稗草;野子;野稗子;

科名：禾本科 Gramineae

属名：稗属 Echinochloa

《中国植物志》第10(1)卷252页
  2. 稗（孟子） 稗子（救荒草本），扁扁草（江苏）
  Echinochloa crusgalli (L.) Beauv. Ess. Agrost 53. 1812: Ohwi in Acta Phytotax. et Geobot. 11: 36. 1942; 广州植物志 811. 1956; 中国主要植物图说 禾本科 673. 1957; Bor, Grass. Burm. Ceyl, Ind. Pakist. 310. 1960; 华东禾本科值物志 190. 1962; 中国高等植物图鉴 5: 164. 图7157. 1976; 江苏植物志（上册）: 220. 图374. 1976; 海南植物志 4: 419. 1977: Kitag. Neo-Lineam. Fl. Mansh. 85. 1979.——Panicum crusgalli L. Sp. Pl. ed 1: 56. 1753. ——Millium crusgalli (L.) Moench, Method. Pl. 202. 1794.——Pennisetum crusgalli (L.) Baumg. Enum. Strip. Transsilv. 3: 277. 1816.

《Flora of China》 Vol. 22 (2006)
Echinochloa crusgalli  (Linnaeus) P. Beauvois
稗   bai
Annual. Culms coarse, erect or geniculately ascending, 20–150 cm tall. Leaf blades linear, 5–40 × 0.2–1.2 cm, usually glabrous, smooth except for scabrous margins, apex acute. Inflorescence erect, lanceolate to ovate or pyramidal, 6–22 cm; racemes 2–10 cm, usually ascending, simple or the longest with inconspicuous branchlets near the base, rachis usually with tubercle-based setae, spikelets loosely to densely crowded. Spikelets green or purplish, ovate, 2.5–4 mm, spinulose along veins; lower glume ca. 1/3 as long as spikelet, acute; lower lemma sterile, herbaceous, acuminate or extended into an awn to 3 cm; upper lemma pale brownish at maturity, elliptic, 2–3 mm. Fl. and fr. summer and autumn. 2n = 36, 48, 54, 72.
Damp weedy places, streamsides, rice fields. Throughout China [warm-temperate and subtropical regions of the world].
Echinochloa crusgalli is a widespread, polymorphic weed with many intergrading variants. The following varieties may be recognized in China: