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金荞麦Fagopyrum dibotrys

时间:2013-10-30 14:09来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ):金荞麦 学名( Scientific Name ): Fagopyrum dibotrys (D. Don) Hara 英文名( English Common Name ): 别名( Chinese Common Name ): 天荞麦 异名( Synonym ): Fagopyrum pilus Q. F. Chen Fagopyrum cymosum (Trevir
中文名(Chinese Name):金荞麦
学名(Scientific Name):Fagopyrum dibotrys (D. Don) Hara
英文名(English Common Name):
别名(Chinese Common Name):天荞麦
异名(Synonym):Fagopyrum pilus Q. F. Chen  Fagopyrum cymosum (Trevir.) Meisn.  Fagopyrum megaspartanium Q. F. Chen  Polygonum dibotrys D. Don  Polygonum acutatum Lehm.  Polygonum cymosum Trev.  Polygonum labordei H. Lév. et Vaniot  Polygonum volubile Turcz.  Fagopyrum acutatum (Lehm.) Mansf. ex K. Hammer
科属(Family & Genus):蓼科(Polygonaceae)荞麦属
形态特征(Description):多年生草本。根状茎木质化,黑褐色。茎直立,高50-100厘米,分枝,具纵棱,无毛。有时一侧沿棱被柔毛。叶三角形,长4-12厘米,宽3-11厘米,顶端渐尖,基部近戟形,边缘全缘,两面具乳头状突起或被柔毛;叶柄长可达10厘米;托叶鞘筒状,膜质,褐色,长5-10毫米,偏斜,顶端截形,无缘毛。花序伞房状,顶生或腋生;苞片卵状披针形,顶端尖,边缘膜质,长约3毫米,每苞内具2-4花;花梗中部具关节,与苞片近等长;花被5深裂,白色,花被片长椭圆形,长约2.5毫米,雄蕊8, 比花被短,花柱3, 柱头头状。瘦果宽卵形,具3锐棱,长6-8毫米,黑褐色,无光泽,超出宿存花被2-3倍。花期7-9月,果期8-10月。
分布(Distribution):产陕西、华东、华中、华南及西南。生海拔250-3200米山谷湿地、山坡灌丛中。印度、尼泊尔、克什米尔、越南、泰国也有。
用途(Use):块根供药用,清热解毒、排脓去瘀。
引自中国植物志英文版:FOC Vol. 5 Page 321     
Fagopyrum dibotrys (D. Don) H. Hara, Fl. E. Himal. 69. 1966.
金荞 jin qiao| Polygonaceae  | Fagopyrum
Polygonum dibotrys D. Don, Prodr. Fl. Nepal. 73. 1825; ?Fagopyrum acutatum (Lehmann) Mansfeld ex K. Hammer; Fagopyrum cymosum (Treviranus) Meisner; F. megaspartanium Q. F. Chen; F. pilus Q. F. Chen; ?P. acutatum Lehmann; P. cymosum Treviranus; P. labordei H. Léveillé & Vaniot; P. tristachyum H. Léveillé; P. volubile Turczaninow.
Herbs perennial. Rhizomes black-brown, stout, ligneous. Stems erect, green or brownish, 40-100 cm tall, much branched, striate, glabrous. Petiole 2-10 cm; leaf blade triangular, 4-12 × 3-11 cm, both surfaces papillate, base nearly hastate, margin entire, apex acuminate; ocrea brown, 5-10 mm, membranous, oblique, apex truncate, not ciliate. Inflorescence terminal or axillary, corymbose; bracts ovate-lanceolate, ca. 3 mm, margin membranous, apex acute, each 4-flowered, rarely 6-flowered. Pedicels equaling bracts, articulate at middle. Perianth white; tepals narrowly elliptic, ca. 2.5 mm. Stamens included. Styles free; stigmas much exceeding persistent perianth, capitate, opaque. Achenes blackish brown, dull, broadly ovoid, 6-8 mm, trigonous, sometimes narrowly winged, angles smooth to repandous, apex acute. Fl. Apr-Oct, fr. May-Nov. 2n = 24, 32*
Moist valleys, grassy slopes; 300-3200 m. Anhui, Fujian, S Gansu, Guangdong, Guangxi, Guizhou, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Shaanxi, Sichuan, Xizang, Yunnan, Zhejiang [Bhutan, India, Kashmir, Myanmar, Nepal, Sikkim, Vietnam].
This species is used medicinally.
 




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