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金线草Antenoron filiforme

时间:2013-10-30 14:07来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ):金线草 学名( Scientific Name ): Antenoron filiforme (Thunb.) Rob. et Vaut. 英文名( English Common Name ): 别名( Chinese Common Name ): 异名( Synonym ): Polygonum filiforme Thunb. Sunania filiformis (Th
中文名(Chinese Name):金线草
学名(Scientific Name):Antenoron filiforme (Thunb.) Rob. et Vaut.
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):Polygonum filiforme Thunb.  Sunania filiformis (Thunb.) Raf.  Tovara virginiana var. filiformis (Thunb.) Stew.  Persicaria filiformis (Thunb.) Nakai  Polygonum virginianum f. glabratum Matsuda  Tovara ryukyuensis Masam.  Polygonum virginianum L. : Kung
科属(Family & Genus):蓼科(Polygonaceae)金线草属
形态特征(Description):多年生草本。根状茎粗壮。茎直立,高50-80厘米,具糙伏毛,有纵沟,节部膨大。叶椭圆形或长椭圆形,长6-15厘米,宽4-8厘米,顶端短渐尖或急尖,基部楔形,全缘,两面均具糙伏毛;叶柄长1-1.5厘米,具糙伏毛;托叶鞘筒状,膜质,褐色,长5-10毫米,具短缘毛。总状花序呈穗状,通常数个,顶生或腋生,花序轴延伸,花排列稀疏;花梗长3-4毫米;苞片漏斗状,绿色,边缘膜质,具缘毛;花被4深裂,红色,花被片卵形,果时稍增大;雄蕊5;花柱2,果时伸长,硬化,长3.5-4毫米,顶端呈钩状,宿存,伸出花被之外。瘦果卵形,双凸镜状,褐色,有光泽,长约3毫米,包于宿存花被内。花期7-8月,果期9-10月。
分布(Distribution):产陕西、甘肃、华东、华中、华南及西南地区。生海拔100-2500米山坡林缘、山谷路旁。朝鲜、日本、越南也有。
用途(Use):
引自中国植物志英文版:FOC Vol. 5 Page 320
Antenoron filiforme (Thunberg) Roberty & Vautier, Boissiera. 10: 35. 1964.
金线草 jin xian cao      | Polygonaceae  | Antenoron
Herbs perennial. Rhizomes stout. Stems erect, 50-80 cm tall, striate, appressed hispid, swollen at nodes. Petiole 1-1.5 cm, appressed hispid; leaf blade elliptic or narrowly elliptic to ovate, rarely obovate, 6-15 × 4-8 cm, both surfaces appressed hispid, base cuneate, margin entire, apex acute or acuminate; ocrea tubular, 5-10 mm, membranous, shortly ciliate. Inflorescence terminal or axillary, 15-35 cm, slender, laxly flowered; bracts funnel-shaped, 2-3 mm, ciliate, 1-3-flowered. Pedicel 3-4 mm. Perianth rose, 4-parted; tepals ovate, ca. 3 mm, accrescent. Stamens usually 5, included. Styles 2, persistent, enlarged and indurate at maturity, 3.5-4 mm, deflexed and hooked at apex, long exserted from perianth. Achenes included in persistent perianth, dark brown, shiny, ovoid, biconvex, smooth. Fl. Aug-Oct, fr. Sep-Nov.
Forests, thickets, valleys; 100-2500 m. Anhui, Fujian, S Gansu, Guangdong, Guangxi, Guizhou, Henan, Hubei, Hunan, Jiangsu, Jiangxi, S Shaanxi, Shandong, Sichuan, Taiwan, Yunnan, Zhejiang [Japan, Korea, Myanmar, Russia (Far East)].
 




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