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尼泊尔蓼Polygonum nepalense

时间:2013-11-11 14:53来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ): 尼泊尔蓼 学名( Scientific Name ): Polygonum nepalense Meisn. 英文名( English Common Name ): 别名( Chinese Common Name ): 异名( Synonym ): Cephalophilon nepalense (Meisn.) Tzvelev Persicaria alata (Buc
中文名(Chinese Name):尼泊尔蓼
学名(Scientific Name):Polygonum nepalense Meisn.
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):Cephalophilon nepalense (Meisn.) Tzvelev  Persicaria alata (Buch.-Ham. ex D. Don) Nakai  Polygonum alatum (Buch.-Ham. ex D. Don) Sprengel  Polygonum quadrifidum Hayata  Polygonum punctatum var. alatum Buch.-Ham. ex D. Don  Polygonum nepalense var. adenothrix Nakai  Polygonum alatum var. nepalense (Meissn.) Hook. f.
科属(Family & Genus):蓼科Polygonaceae蓼属Polygonum
形态特征(Description):一年生草本。茎外倾或斜上,自基部多分枝,无毛或在节部疏生腺毛,高20-40厘米。茎下部叶卵形或三角状卵形,长3-5厘米,宽2-4厘米,顶端急尖,基部宽楔形,沿叶柄下延成翅,两面无毛或疏被刺毛,疏生黄色透明腺点,茎上部较小;叶柄长1-3厘米,或近无柄,抱茎;托叶鞘筒状,长5-10毫米,膜质,淡褐色,顶端斜截形,无缘毛,基部具刺毛。花序头状,顶生或腋生,基部常具1叶状总苞片,花序梗细长,上部具腺毛;苞片卵状椭圆形,通常无毛,边缘膜质,每苞内具1花;花梗比苞片短;花被通常4裂,淡紫红色或白色,花被片长圆形,长2-3毫米,顶端圆钝;雄蕊5-6, 与花被近等长,花药暗紫色;花柱2,下部合生,柱头头状。瘦果宽卵形,双凸镜状,长2-2.5毫米,黑色,密生洼点。无光泽,包于宿存花被内。花期5-8月,果期7-10月。
分布(Distribution):除新疆外,全国有分布。生山坡草地、山谷路旁,海拔200-4000米。朝鲜、日本、俄罗斯、阿富汗、巴基斯坦、印度、尼泊尔、菲律宾、印度尼西亚及非洲也有。
用途(Use):
引自中国植物志英文版:FOC Vol. 5 Page 303
Polygonum nepalense Meisner, Monogr. Polyg. 84. 1826.
尼泊尔蓼 ni bo er liao| Polygonaceae  | Polygonum
Cephalophilon nepalense (Meisner) Tzvelev; Persicaria alata (Buchanan-Hamilton ex D. Don) Nakai; P. nepalensis (Meisner) H. Gross; Polygonum alatum (Buchanan-Hamilton ex D. Don) Sprengel; P. alatum var. nepalense (Meisner) J. D. Hooker; ?P. nepalense var. adenothrix Nakai; P. punctatum Buchanan-Hamilton ex D. Don (1825), not Elliott (1817), nor Rafinesque (1820); P. punctatum Buchanan-Hamilton ex D. Don var. alatum Buchanan-Hamilton ex D. Don; P. quadrifidum Hayata (1911), not Meisner (1840).
Herbs annual. Stems decumbent or ascending, 20-40 cm tall, much branched at base, rooting at lower nodes. Lower leaves petiolate; petiole 2-3 cm, winged; leaf blade ovate or triangular-ovate, 3-5 × 2-4 cm, both surfaces sparsely setose or glabrous, sparsely yellow pellucid glandular punctate, base broadly cuneate, decurrent along petiole forming wing, margin entire, upper leaves smaller, subsessile or clasping; ocrea brownish, tubular, 5-10 mm, membranous, apex obliquely truncate, not ciliate, with recurved seta at base. Inflorescence capitate, included by an involucral leaf; peduncle long, glandular hairy; bracts ovate-elliptic, usually glabrous, margin membranous. Pedicels shorter than bracts. Perianth purplish red or white, usually 4-parted; tepals oblong, 2-3 mm, apex obtuse. Stamens 5 or 6, equaling perianth; anthers black-purple. Styles 2, connate at base; stigmas capitate. Achenes included in persistent perianth, black, opaque, broadly ovoid, biconvex, 2-2.5 mm, densely pitted. Fl. May-Aug, fr. Jun-Oct.
Mountain slopes, moist valleys; 200-4000 m. Anhui, Fujian, Gansu, Guangdong, Guangxi, Guizhou, Hainan, Hebei, Heilongjiang, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Jilin, Liaoning, Nei Mongol, Ningxia, Qinghai, Shaanxi, Shandong, Shanxi, Sichuan, Taiwan, Xizang, Yunnan, Zhejiang [Afghanistan, Bhutan, India, Indonesia, Japan, Korea, Malaysia, Nepal, New Guinea, Pakistan, Philippines, Russia (Far East), Sikkim, Thailand; tropical Africa].
 
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