《中国植物志》|| 禾本科 GRAMINEAE ||假稻属 Leersia Soland. ex Swartz. ||假稻 Leersia japonica (Makino ex Honda) Honda

2．假稻（钟观光拟）图版2：1，1a
Leersia japonica (Makino) Honda in Journ. Fac. Sci. Univ. Tokyo Sect. III. Bot. 3: 7. 1930;中国主要植物图说•禾本科631, 图569. 1959;华东禾本科植物志175. 1962;江苏植物志(上): 213, 图363. 1977.——Leersia japoinca Makino in Bot. Mag Tokyo 4: 48. 1892, nom. nud. ——Homalocenchrus japanicus(Makino) Honda in Bot. Mag.Tokyo 39: 37. 1925.——Leersia sinensis Hao in Repert. Sp. Nov. Fedde. 42: 83. 1937.
多年生。秆下部伏卧地面，节生多分枝的须根，上部向上斜升，高60-80厘米，节密生倒毛。叶鞘短于节间，微粗糙；叶舌长1-3毫米，基部两侧下延与叶鞘连合；叶片长6-15厘米，宽4-8毫米，粗糙或下面平滑。圆锥花序长9-12厘米，分枝平滑，直立或斜升，有角棱，稍压扁；小穗长5-6毫米，带紫色；外稃具5脉，脊具刺毛；内稃具3脉，中脉生刺毛；雄蕊6枚，花药长3毫米。花果期夏秋季。染色体2n＝96（Hirayoshi 1937）。
产江苏、浙江、湖南、湖北、四川、贵州、广西、，河南、河北。生于池塘、水田、溪沟湖旁水湿地。分布于日本。模式标本采自日本。

《Flora of China》|| Poaceae || Leersia ||假稻 Leersia japonica

2. Leersia japonica (Makino ex Honda) Honda, J. Fac. Sci. Univ. Tokyo, Sect. 3, Bot. 3: 7. 1930.

假稻 jia dao

Homalocenchrus japonicus Makino ex Honda, Bot. Mag. (Tokyo) 39: 37. 1925; Leersia sinensis K. S. Hao.

Perennial, loosely tufted. Culms decumbent, rooting at lower nodes, upper part geniculately ascending, 60–80 cm tall, nodes densely retrorsely hispid. Leaf sheaths shorter than internodes, scabrid; leaf blades flat, 6–15 × 0.4–0.8 cm, scabrid or abaxial surface smooth, base contracted, apex sharply acute; ligule 2–3 mm, truncate. Panicle elliptic to ovate in outline, 9–12 cm, exserted; branches inserted singly, stiffly ascending or spreading, 4–7 cm, unbranched, thick, slightly flattened, smooth, clothed to near base with approximate or slightly overlapping spikelets. Spikelets lanceolate-oblong, 4.5–6 mm, pale green tinged brownish red; lemma pectinate-hispid on keel only, surface smooth, margins minutely spinulose, apex contracted into a narrowly obtuse beak. Stamens 6, anthers 2.5–3 mm. Fl. and fr. summer and autumn. 2n = 96.

Ponds, flooded fields, wet streamsides, ditch banks, lake shores. Anhui, Guangxi, Guizhou, Hebei, Henan, Hubei, Hunan, Jiangsu, Shaanxi, Shandong, Sichuan, Yunnan, Zhejiang [Japan, S Korea].