中文名（Chinese Name）：耳柄蒲儿根
学名（Scientific Name）：Sinosenecio euosmus(Hand.-Mazz.) B. Nord.
英文名（English Common Name）：
别名（Chinese Common Name）：槭叶千里光
异名（Synonym）：Senecio euosmus Hand.-Mazz.  Senecio winklerianus Hand.-Mazz.  Senecio doryotus Hand.-Mazz.  Sinosenecio winklerianus (Hand.-Mazz.) B. Nord.  Sinosenecio doryotus (Hand.-Mazz.) B. Nord.  Sinosenecio winklerana (Hand.-Mazz.) B.Nord.
科属（Family & Genus）：菊科（Compositae）蒲儿根属
形态特征（Description）：具匍枝茎叶草本。根状茎细长，横走或斜升，节上常具多数纤维状根。茎单生，直立，高20-75厘米，或更高，基部径约6毫米，不分枝，具条纹，或多或少被长柔毛，下部毛较密，上部常脱毛。基生叶花期凋落；中部茎叶具长柄，叶片卵形或宽卵形，长2-5厘米，宽3-6厘米，顶端圆形至尖，浅翠牙或有时具5-13较深掌状裂，裂片近三角形，具浅至深有小尖齿或具粗齿，基部浅心形至近截形，上面绿色，被短柔毛或近无毛，下面沿脉被长柔毛或稀近无毛；叶柄长为叶片1-2倍，多少被长柔毛至近无毛，基部稍扩大，无耳，或中上部叶柄基部渐扩大成卵形或圆形，全缘或稀具齿且半抱茎的耳，稀全部叶无耳。上部茎叶渐小，最上部叶苞片状，线形。头状花序5-15，或更多排列成顶生近伞形状伞房花序或复伞房花序；花序梗细，长0.5-3厘米，被疏至密开展长柔毛，基部有时具线形苞片，上部无苞片或有1钻形小苞片。总苞近钟形，长4-5毫米，宽2.5-4毫米，无外苞片；总苞片草质，约15，1层，披针形或线状披针形，宽约1毫米，顶端尖，紫色，被缘毛，具膜质边缘，外面无毛或近无毛。舌状花约10，管部长2毫米，无毛，舌片黄色，长圆形或线状长圆形，长3.5-4毫米，宽1.5毫米，顶端具3细齿，具4条脉。管状花多数，花冠黄色，长4毫米，管部长2毫米，檐部钟状；裂片长圆形，长1毫米，顶端尖；花药长约1毫米，基部钝，附片披针形；花柱分枝外弯，长0.7毫米，顶端截形，两侧被乳头状微毛。瘦果圆柱形，长2毫米，无毛而具肋。冠毛白色，长2.5-3毫米。花期7-8月。
分布（Distribution）：产西藏、陕西、甘肃、湖北、四川、云南等地，常生于海拔2400-4000米的林缘、高山草甸或潮湿处。
用途（Use）：
引自中国植物志英文版FOC Vol. 20-21 Page 466, 473, 474
Sinosenecio euosmus (Handel-Mazzetti) B. Nordenstam, Opera Bot. 44: 50. 1978.
耳柄蒲儿根 er bing pu er gen | Asteraceae  | Sinosenecio
Senecio euosmus Handel-Mazzetti, Anz. Akad. Wiss. Wien, Math.-Naturwiss. Kl. 62: 148. 1925; S. acerifolius C. Winkler (1893), not K. Koch (1861), nor Hemsley (1881); S. cortusifolius Handel-Mazzetti; S. doryotus Handel-Mazzetti; S. winklerianus Handel-Mazzetti; Sinosenecio cortusifolius (Handel-Mazzetti) B. Nordenstam; S. doryotus (Handel-Mazzetti) B. Nordenstam; S. winklerianus (Handel-Mazzetti) B. Nordenstam.
Herbs, stoloniferous, with leafy stems. Rhizomes ascending or procumbent, slender. Stems solitary, erect, 20-75 cm or taller, ca. 6 mm in diam. at base, simple, ± villous or arachnoid-tomentose, especially in lower part, sometimes glabrescent in upper part. Radical leaves withered by anthesis; median stem leaves long petiolate; blade adaxially green, ovate, broadly ovate, or reniform, 2-5 × 3-8 cm, abaxially arachnoid-tomentose or villous on veins or rarely subglabrous, adaxially villous, sparsely arachnoid, shortly pubescent, or subglabrous, base shallowly cordate to subtruncate, margin shallowly to sometimes rather deeply palmately divided into 5-13 lobes or large teeth; lobes subdeltoid, shallowly crenate or shallowly to deeply mucronulate-dentate, apex rounded to acute. Upper leaves smaller. Uppermost leaves linear, bractlike. Petiole 1-2 × as long as blade, ± villous arachnoid or subglabrous, those of lower leaves not auriculate, slightly expanded at base, those of median and upper leaves usually gradually expanded into ovate or orbicular, entire or dentate subamplexicaul auricles, rarely all leaves inconspicuously auriculate. Capitula 5-15 or more arranged in terminal subumbelliform corymbs or compound corymbs; peduncles 0.5-5.5 cm, slender, sparsely to densely ascending villous, sometimes with a linear basal bract, without or sometimes with a subulate bracteole. Involucres subcampanulate, 4-6 × 2.5-6.5 mm, not calyculate; phyllaries ca. 13, lanceolate or linear-lanceolate, ca. 1 mm wide, herbaceous, glabrous or subglabrous, margin membranous, apically acute, purplish and ciliate. Ray florets 10-13; corolla tube ca. 2 mm, glabrous; lamina yellow, oblong or linear-oblong, 3.5-4 × ca. 1.5 mm, 4-veined, apically 3-denticulate. Disk florets many; corolla yellow, ca. 4 mm, with ca. 2 mm tube and campanulate limb; lobes oblong, apically acute. Anthers ca. 1.5 mm, basally obtuse to rounded, appendages lanceolate. Style branches ca. 1 mm. Achenes cylindric, ca. 1.8 mm, smooth, glabrous. Pappus white, 5.5-6 mm. Fl. Jun-Aug, fr. Jul-Sep. 2n = 48*.
Woods, grasslands, streamsides; 1800-4000 m. Gansu, Hubei, Shaanxi, Sichuan, Yunnan [Myanmar].
Sinosenecio euosmus is a rather widespread species, which shows great variation in the size and shape of leaf auricles, the indumentum along the stem, and the degree of division of leaves. Its close putative relatives include S. fangianus, S. sungpanensis, and perhaps also S. oldhamianus.
（责任编辑：徐晔春）