目前为止，中国西南野生生物种质资源库共保藏该物种: 种子28份; DNA材料47份; DNA6份;

• 科:菊科    Asteraceae
• 属:泽兰属    Eupatorium
• 种:异叶泽兰   Eupatorium heterophyllum

6. Eupatorium heterophyllum Candolle, Prodr. 5: 180. 1836. 异叶泽兰 yi ye ze lan Eupatorium cannabinum Linnaeus var. heterophyllum (Candolle) Kitamura; E. mairei H. Léveillé; E. wallichii Candolle var. heterophyllum (Candolle) Diels.Herbs perennial, 1-2 m tall, or subshrublike, woody in median-lower part. Stems erect, brownish or purple-red, 1-2 cm in diam. at base, branched, and with corymbose synflorescence branches, white or sordid-white puberulent, more densely hairy on synflorescence branches and peduncles, glabrescent or sparsely hairy in middle-lower part by anthesis. Leaves opposite; median stem leaves large, 3-sect, -partite, or -lobate; petiole 0.5-1 cm; central lobe large, elliptic or lanceolate, 7-10 × 2-3.5 cm, base cuneate, apex acuminate; lateral lobes homomorphic with central lobe, smaller, or all stem leaves simple, oblong, elliptic-lanceolate, or ovate, abaxially densely gray-white tomentose, adaxially scabrid, white puberulent, both surfaces with dense yellow glands, pinnately veined, lateral veins 3-7-paired, abaxially prominent, margin rather regularly and deeply incised-crenate, not undulate; basal leaves withered by anthesis. Capitula numerous in terminal compound corymb; synflorescence to 25 cm in diam. Involucre campanulate, 7-9 cm; phyllaries 3-seriate, imbricate; outer phyllaries short, ovate or broadly ovate, ca. 2 mm, outside sparsely white puberulent; median and inner phyllaries elliptic, 8-9 mm; all phyllaries purple-red or purplish rose, apex obtuse. Florets white or reddish tinged; corolla ca. 5 mm, with sparse yellow glands. Achenes black-brown, elliptic, ca. 3.5 mm, 5-angled, with yellow glands, glabrous. Pappus white, ca. 5 mm. Fl. and fr. Apr-Oct.Forests, forest margins, grasslands on slopes and in valleys; 1700-3000 m. Anhui, Gansu, Guizhou, Hubei, Shaanxi, Sichuan, ?Taiwan, Xizang, Yunnan [Nepal].One of us (Hind) follows King and Robinson (Monogr. Syst. Bot. 22: 1-581. 1987) in treating Eupatorium heterophyllum as a synonym of E. cannabinum. However, the others of us (Chen and Kawahara) prefer to treat E. heterophyllum as a distinct species. Whereas the leaves of E. cannabinum are irregularly lobed, with the margin serrate and undulate, those of E. heterophyllum are 3-sect, with the margin rather regularly and deeply incised-crenate and not undulate.The stems or whole plant of Eupatorium heterophyllum are used medicinally for treating injuries and trauma.【引自：Flora of China】

多年生草本，高1-2米，或小半灌木状，中下部木质。茎枝直立，淡褐色或紫红色，基部径1-2厘米，分枝斜升，上部花序分枝伞房状，全部茎枝被白色或污白色短柔毛，花序分枝及花梗上的毛较密，中下部花期脱毛或疏毛。叶对生，中部茎叶较大，三全裂、深裂、浅裂或半裂，总叶柄长0.5-1厘米；中裂片大，长椭圆形或披针形，长7-10厘米，宽2-3.5厘米，基部楔形，顶端渐尖，侧裂片与中裂片同形但较小；或中部或全部茎叶不分裂，长圆形、长椭圆状披针形或卵形。全部叶两面被稠密的黄色腺点，上面粗涩，被白色短柔毛，下面柔软，被密绒毛而灰白色或淡绿色，羽状脉3-7对，在叶下面稍突起，边缘有深缺刻状圆钝齿。茎基部叶花期枯萎。头状花序多数，在茎枝顶端排成复伞房花序，花序径达25厘米。总苞钟状，长7-9毫米；总苞片覆瓦状排列，3层，外层短，长2毫米，卵形或宽，卵形，背面沿中部被白色稀疏短柔毛，中内层苞片长8-9毫米，长椭圆形，全部苞片紫红色或淡紫红色，顶端圆形。花白色或微带红色，花冠长约5毫米，外面被稀疏黄色腺点。瘦果黑褐色，长椭圆状，长3.5毫米，5棱，散布黄色腺体，无毛；冠毛白色，长约5毫米。 花果期4-10月。 【引自：中国植物志】