矮地榆Sanguisorba filiformis
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.
（责任编辑：徐晔春）
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.
（责任编辑：徐晔春）
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