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鸡麻Rhodotypos scandens

时间:2013-11-06 14:17来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ): 鸡麻 学名( Scientific Name ): Rhodotypos scandens (Thunb.) Makino 英文名( English Common Name ): jetbead 别名( Chinese Common Name ): 异名( Synonym ): Corchorus scandens Thunb. Kerria tetrapetala Sieb
中文名(Chinese Name):鸡麻
学名(Scientific Name):Rhodotypos scandens (Thunb.) Makino
英文名(English Common Name):jetbead
别名(Chinese Common Name):
异名(Synonym):Corchorus scandens Thunb.  Kerria tetrapetala Siebold  Rhodotypos kerrioides Siebold et Zucc.  Rhodotypos tetrapetala (Siebold) Makino  Rhodotypos tetrapetalus (Siebold) Makino
科属(Family & Genus):蔷薇科(Rosaceae)鸡麻属
形态特征(Description):落叶灌木,高0.5-2米,稀达3米。小枝紫褐色,嫩枝绿色,光滑。叶对生,卵形,长4-11厘米,宽3-6厘米,顶端渐尖,基部圆形至微心形,边缘有尖锐重锯齿,上面幼时被疏柔毛,以后脱落无毛,下面被绢状柔毛,老时脱落仅沿脉被稀疏柔毛;叶柄长2-5毫米,被疏柔毛;托叶膜质狭带形,被疏柔毛,不久脱落。单花顶生于新梢上;花直径3-5厘米;萼片大,卵状椭圆形,顶端急尖,边缘有锐锯齿,外面被稀疏绢状柔毛,副萼片细小,狭带形,比萼片短4-5倍;花瓣白色,倒卵形,比萼片长1/4-1/3倍。核果1-4,黑色或褐色,斜椭圆形,长约8毫米,光滑。花期4-5月,果期6-9月。
分布(Distribution):产辽宁、陕西、甘肃、山东、河南、江苏、安徽、浙江、湖北,生海拔100-800米山坡疏林中及山谷林下阴处。日本和朝鲜也有分布。
用途(Use):我国南北各地栽培供庭园绿化用;根和果入药,治血虚肾亏。
引自中国植物志英文版:FOC Vol. 9 Page 192     
Rhodotypos scandens (Thunberg) Makino, Bot. Mag. (Tokyo). 27: 126. 1913.
鸡麻 ji ma| Rosaceae  | Rhodotypos
Corchorus scandens Thunberg, Trans. Linn. Soc. London 2: 335. 1794; Kerria tetrapetala Siebold; Rhodotypos kerrioides Siebold & Zuccarini; R. tetrapetala (Siebold) Makino.
Shrubs 0.5–2(3) m tall. Branchlets green when young, later brown, glabrous. Stipules pilose; petiole 2–5 mm, pilose; leaf blade 4–11 × 3–6 cm, abaxially sericeous when young, sparsely pilose on veins when old, adaxially pilose when young, glabrescent later, base rounded to subcordate, apex acuminate. Flowers 3–5 cm in diam. Sepals ovate-elliptic, sparsely sericeous distally, apex acute; epicalyx segments linear, 1/5–1/4 as long as sepals. Petals obovate, 1/4–1/3 as long as sepals. Drupes 1–4, brownish black, obliquely ellipsoid, ca. 8 mm. Fl. Apr–May, fr. Jun–Sep. 2n = 18.
Forests on mountain slopes or in valleys; 100--800 m. Anhui, Gansu, Henan, Hubei, Jiangsu, Liaoning, Shaanxi, Shandong, Zhejiang [Japan, Korea].
This species is used medicinally and cultivated for ornament.
 




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