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矮地榆Sanguisorba filiformis

时间:2013-11-07 13:51来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ): 矮地榆 学名( Scientific Name ): Sanguisorba filiformis (Hook. f.) Hand.-Mazz. 英文名( English Common Name ): 别名( Chinese Common Name ): 虫莲 异名( Synonym ): Poterium filiforme Hook. f. 科属( Famil
中文名(Chinese Name):矮地榆
学名(Scientific Name):Sanguisorba filiformis (Hook. f.) Hand.-Mazz.
英文名(English Common Name):
别名(Chinese Common Name):虫莲
异名(Synonym):Poterium filiforme Hook. f.
科属(Family & Genus):蔷薇科(Rosaceae)地榆属
形态特征(Description):多年生草本。根圆柱形,表面棕褐色。茎高8-35厘米,纤细,无毛。基生叶为羽状复叶,有小叶3-5对,叶柄光滑,小叶片有短柄稀几无柄,宽卵形或近圆形,长0.4-1.5厘米,宽与长几相等,顶端圆钝,稀近截形,基部圆形至微心形,边缘有圆钝锯齿,上面暗绿色,下面绿色,两面均无毛,茎生叶1-3,与基生叶相似,惟向上小叶对数逐渐减少;基生叶托叶褐色,膜质,外面无毛,茎生叶托叶草质,绿色,全缘或有齿。花单性,雌雄同株,花序头状,几球形,直径3-7毫米,周围为雄花,中央为雌花;苞片细小,卵形,边缘有稀疏睫毛;萼片4,白色,长倒卵形,外面无毛;雄蕊7-8枚,花丝丝状,比萼片长约1倍;花柱丝状,比萼片长1/2-1倍,柱头呈乳头头状扩大。果有4稜 ,成熟时萼片脱落。花果期6-9月。
分布(Distribution):产四川、云南、西藏,生海拔1200-4000米山坡草地及沼泽。印度也有分布。
用途(Use):本种根入药,治痛经等症。
引自中国植物志英文版:FOC Vol. 9 Page 387     
Sanguisorba filiformis (J. D. Hooker) Handel-Mazzetti, Symb. Sin. 7: 524. 1933.
矮地榆 ai di yu| Rosaceae  | Sanguisorba
 Sanguisorba filiformis
Credit: Harvard University Herbaria
Poterium filiforme J. D. Hooker, Fl. Brit. India 2: 362. 1878.
Herbs perennial, monoecious, 8–35 cm tall. Rootstock brown, terete. Stems slender, glabrous. Radical leaves: stipules brown, membranous, abaxially glabrous; petiole glabrous; leaf blade with 3–5 pairs of leaflets; leaflets shortly petiolulate, rarely subsessile, broadly ovate or suborbicular, 0.4–1.5 cm, both surfaces glabrous, base subcordate to rounded, margin obtusely serrate, apex rounded, rarely truncate; cauline leaves: stipules green, herbaceous, margin entire or serrate; leaf blade resembling that of radical leaves but leaflets fewer higher up stem. Inflorescences capitate, subglobose, 3–7 mm in diam., with male flowers surrounding females; bracts ovate, minute, membranous, glabrous, margin entire or sparsely ciliate. Sepals 4, white, narrowly elliptic to long obovate, abaxially glabrous. Stamens 7 or 8; filaments filiform, nearly 2 × as long as sepals. Style filiform, 0.5–1.5 × as long as sepals; stigma dilated, papillate. Fruiting hypanthium longitudinally 4-ribbed; sepals deciduous when mature. Fl. and fr. Jun–Sep.
Meadows on mountain slopes, marshes; 1200--4500 m. Sichuan, Xizang, Yunnan [Bhutan, Sikkim].
This species is used medicinally.
 




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