大血藤Sargentodoxa cuneata

中文名(Chinese Name):大血藤
学名(Scientific Name):Sargentodoxa cuneata (Oliv.) Rehd. et Wils.
英文名(English Common Name):
别名(Chinese Common Name):过江龙
异名(Synonym):Holboellia cuneata Oliv.  Sargentodoxa simplicifolia S. Z. Qu et C. L. Min
科属(Family & Genus):蝶形花科,Fabaceae大血藤属
形态特征(Description):落叶木质藤本,长达到10余米。藤径粗达9厘米,全株无毛;当年枝条暗红色,老树皮有时纵裂。三出复叶,或兼具单叶,稀全部为单叶;叶柄长与3-12厘米;小叶革质,顶生小叶近棱状倒卵圆形,长4-12.5厘米,宽3-9厘米,先端急尖,基部渐狭成6-15毫米的短柄,全缘,侧生小叶斜卵形,先端急尖,基部内面楔形,外面截形或圆形,上面绿色,下面淡绿色,干时常变为红褐色,比顶生小叶略大,无小叶柄。总状花序长6-12厘米,雄花与雌花同序或异序,同序时,雄花生于基部;花梗细,长2-5厘米;苞片1枚,长卵形,膜质,长约3毫米,先端渐尖;萼片6,花瓣状,长圆形,长0.5-1厘米,宽0.2-0.4厘米,顶端钝;花瓣6,小,圆形,长约1毫米,蜜腺性;雄蕊长3-4毫米,花丝长仅为花药一半或更短,药隔先端略突出;退化雄蕊长约2毫米,先端较突出,不开裂;雌蕊多数,螺旋状生于卵状突起的花托上,子房瓶形,长约2毫米,花柱线形,柱头斜;退化雌蕊线形,长1毫米。每一浆果近球形,直径约1厘米,成熟时黑蓝色,小果柄长0.6-1.2厘米。种子卵球形,长约5毫米,基部截形;种皮,黑色,光亮,平滑;种脐显著。花期4-5月,果期6-9月。
分布(Distribution):产陕西、四川、贵州、湖北、湖南、云南、广西、广东、海南、江西、浙江、安徽。常见于山坡灌丛、疏林和林缘等,海拔常为数百米。中南半岛北部有分布。
用途(Use):根及茎均可供药用,有通经活络、散瘀痛、理气行血、杀虫等功效。茎皮含纤维,可制绳索。枝条可为藤条代用品。
引自植物志英文版:FOC Vol. 6 Page 454
Sargentodoxa cuneata (Oliver) Rehder & E. H. Wilson in Sargent, Pl. Wilson. 1: 351. 1913.
大血藤 da xue teng | Lardizabalaceae  | Sargentodoxa
Holboellia cuneata Oliver, Hooker’s Icon. Pl. 19: t. 1817. 1889; Sargentodoxa simplicifolia S. Z. Qu & C. L. Min.
Bark with longitudinal fissures. Stems with red sap, cross section with radiated markings; branches red-brown to brown, subterete. Winter buds with many imbricate scales; scales scarious, outer ones ovate, inner ones oblong-ovate. Leaves (1 or)3-foliolate; petiole 5--10 cm, slender, channeled; leaflets unequal; lateral leaflets subsessile, subdeltoid, extremely asymmetric with inner basal angle narrowly cuneate and outer basal angle truncate to oblique ovate, usually slightly larger than terminal one; terminal leaflet petiolules 5--10 mm; blade rhomboid-ovate, 4--14 × 3--cm, base cuneate, apex acute. Inflorescences solitary, many-flowered, loose racemes, pendulous, 8--15 cm. Flowers fragrant, yellow to yellowish green. Pedicels 1--1.5 cm, with 1 oblong bract at base; bracteoles 2, at middle of pedicel, alternate, awl-shaped. Male flowers: sepals imbricate in bud, ± erect to spreading, narrowly oblong, 6--10 × 2--4 mm, margin slightly revolute. Petals rhomboid-orbicular, ca. 1.2 mm. Sta-mens ca. 4 mm; filaments 1--1.5 mm; anthers oblong. Female flowers: receptacle subglobose to oblong, ca. 1.4 × 1.2 cm. Fruit 20--40, dull blue, berrylike, stipitate, 7--10 mm in diam. Seeds blackish, ovoid, ca. 5 mm. Fl. Mar--Jul, fr. Jun--Oct.
Open forests on mountain slopes or in gullies; 400--1600(--2000) m. Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Henan, Hubei, Hunan, Jiangsu, Jiangxi, S Shaanxi, Sichuan, SE Yunnan, Zhejiang [Laos, N Vietnam].
The stems and roots are used medicinally.
大血藤Sargentodoxa cuneata

大血藤Sargentodoxa cuneata

大血藤Sargentodoxa cuneata(责任编辑:徐晔春)

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