有芒鸭嘴草Ischaemum aristatum Linn.
有芒鸭嘴草Ischaemum aristatum Linn.
8. 有芒鸭嘴草（中国高等植物图鉴）本田鸭嘴草（禾本科图说）
Ischaemum aristatum Linn. Sp. Pl. 1049. 1753;中国高等植物图鉴5: 191. 图 7211. 1976; 江苏植物志, 上册: 243. 图419. 1977; 台湾植物志5: 664. 图1470. 1978.——Ischaemum sieboldii vai. formosamum Hack. in Bull. Herb. Boiss. 2 (4): 527. 1904. ——Ischaemum crassipes (Steud. ) Thell. var. formosanum (Hack.) Nakai in Bot. Mag. Tokyo 33: 2. 1919; Honda in Journ. Fac. Sci. Unvi. Tokyo sect. II . Bot. 3: 355. 1930.——Ischaemum crassipes var. hainanense Keng in Sunyatsenia 3: 20. 1935; 海南植物志4: 461. 1977——Ischaemum hondae Mats. in Bot. Mag. Tokyo 27: 106. 1913; 中国主要植物图说·禾本科793. 图740. 1959.——Ischaemum guangxiense Zhao in Acta Bot. Yunn. 5 (4): 344. f. 1: 1983, syn. nov.
《Flora of China》 Vol. 22 (2006)
Ischaemum aristatum Linnaeus
有芒鸭嘴草 you mang ya zui cao
Perennial. Culms loosely tufted, erect or geniculately ascending, 40–80 cm tall, simple or branching, nodes glabrous. Leaf sheaths glabrous or pilose; leaf blades linear-lanceolate, 5–25 × 0.4–1 cm, glabrous or thinly pilose, margins smooth becoming scabrid toward apex, base attenuate or contracted, apex acuminate; ligule 2–3 mm. Racemes terminal, paired, appressed back to back, 4–7 cm; rachis internodes clavate, triquetrous, scabrid or ciliate along outer angle, inner angles glabrous or shortly ciliate. Sessile spikelet oblanceolate to obovate, 5.5–8 × 2–2.3 mm; lower glume leathery with rounded flanks below middle, herbaceous, broader and 2-keeled above, 5–7-veined, keels narrowly to broadly winged, wing margin scabrid; upper lemma awnless or shortly awned; awn well developed or imperfect, up to 1.2 cm. Pedicelled spikelet dorsally compressed, resembling sessile, asymmetrical, 2-keeled, keels winged, one wing incurled. Fl. and fr. Jul–Oct. 2n = 56, 72.
Open grassy sandy places, often near the sea; 100–1000 m. S Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hebei, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Liaoning, Shandong, Taiwan, NE Yunnan, Zhejiang [Japan, Korea, Vietnam].
This species usually has awnless or only inconspicuously awned racemes, but occasionally the awns are a little longer and more obvious. Longer awns are weakly associated with a more broadly winged sessile spikelet, and the type of the species name falls within this less frequent variant.
别名：芒穗鸭嘴草;鸭咀草;芒穗鸭咀草;光穗鸭嘴草;毛穗鸭嘴草;皱颖鸭嘴草;本田鸭嘴草;鸭嘴草;有芒鸭咀草;浙鸭嘴草;有芒毛鸭嘴草;有芒鸭嘴草鞋;
科名：禾本科 Gramineae
属名：鸭嘴草属 Ischaemum
8. 有芒鸭嘴草（中国高等植物图鉴）本田鸭嘴草（禾本科图说）
Ischaemum aristatum Linn. Sp. Pl. 1049. 1753;中国高等植物图鉴5: 191. 图 7211. 1976; 江苏植物志, 上册: 243. 图419. 1977; 台湾植物志5: 664. 图1470. 1978.——Ischaemum sieboldii vai. formosamum Hack. in Bull. Herb. Boiss. 2 (4): 527. 1904. ——Ischaemum crassipes (Steud. ) Thell. var. formosanum (Hack.) Nakai in Bot. Mag. Tokyo 33: 2. 1919; Honda in Journ. Fac. Sci. Unvi. Tokyo sect. II . Bot. 3: 355. 1930.——Ischaemum crassipes var. hainanense Keng in Sunyatsenia 3: 20. 1935; 海南植物志4: 461. 1977——Ischaemum hondae Mats. in Bot. Mag. Tokyo 27: 106. 1913; 中国主要植物图说·禾本科793. 图740. 1959.——Ischaemum guangxiense Zhao in Acta Bot. Yunn. 5 (4): 344. f. 1: 1983, syn. nov.
《Flora of China》 Vol. 22 (2006)
Ischaemum aristatum Linnaeus
有芒鸭嘴草 you mang ya zui cao
Perennial. Culms loosely tufted, erect or geniculately ascending, 40–80 cm tall, simple or branching, nodes glabrous. Leaf sheaths glabrous or pilose; leaf blades linear-lanceolate, 5–25 × 0.4–1 cm, glabrous or thinly pilose, margins smooth becoming scabrid toward apex, base attenuate or contracted, apex acuminate; ligule 2–3 mm. Racemes terminal, paired, appressed back to back, 4–7 cm; rachis internodes clavate, triquetrous, scabrid or ciliate along outer angle, inner angles glabrous or shortly ciliate. Sessile spikelet oblanceolate to obovate, 5.5–8 × 2–2.3 mm; lower glume leathery with rounded flanks below middle, herbaceous, broader and 2-keeled above, 5–7-veined, keels narrowly to broadly winged, wing margin scabrid; upper lemma awnless or shortly awned; awn well developed or imperfect, up to 1.2 cm. Pedicelled spikelet dorsally compressed, resembling sessile, asymmetrical, 2-keeled, keels winged, one wing incurled. Fl. and fr. Jul–Oct. 2n = 56, 72.
Open grassy sandy places, often near the sea; 100–1000 m. S Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hebei, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Liaoning, Shandong, Taiwan, NE Yunnan, Zhejiang [Japan, Korea, Vietnam].
This species usually has awnless or only inconspicuously awned racemes, but occasionally the awns are a little longer and more obvious. Longer awns are weakly associated with a more broadly winged sessile spikelet, and the type of the species name falls within this less frequent variant.