中文名（Chinese Name）：长白山橐吾
学名（Scientific Name）：Ligularia jamesii (Hemsl.) Kom.
英文名（English Common Name）：
别名（Chinese Common Name）：单花橐吾、单头橐吾
异名（Synonym）：Senecillis jamesii (Hemsl.) Kitam.  Senecio jamesii Hemsl.
科属（Family & Genus）：菊科（Compositae）橐吾属
形态特征（Description）：多年生草本。根肉质，细长，多数。茎直立，高30-60厘米，上部被白色蛛丝状柔毛，下部光滑，基部直径约3毫米，被褐色枯叶柄纤维包围。丛生叶与茎下部叶具柄，柄长达29 厘米，细瘦，光滑，基部有窄稍，叶片三角状戟形，长3.5-9厘米，基部宽7-10厘米，先端急尖或渐尖，边缘有尖锯齿，基部弯缺宽，长为叶片的1/2，两侧裂片外展，长达6厘米，披针形，全缘或2-3深裂，小裂片长达25厘米，上面及边缘被黄色短毛，下面光滑，叶脉掌式羽状；茎中部叶具短柄，鞘膨大，长达4厘米，抱茎，叶片卵状箭形，较小；茎上部叶无柄，披针形，苞叶状，多数，长达3厘米，近全缘。头状花序辐射状，单生，直径5-7厘米；小苞片线状披针形；总苞宽钟形，长15-17毫米，宽至15毫米，总苞片约13个，披针形，宽约3毫米，先端渐尖，背部被白色蛛丝状毛，具褐色膜质边缘。舌状花13-16，黄色，舌片线状披针形，长达4厘米，宽3-4毫米，先端渐尖，2-3浅裂，管部长5-6毫米；管状花长10-11毫米，管部长约5毫米，冠毛淡黄色与花冠等长。瘦果圆柱形，长约7毫米，光滑。花果期7-8月。
分布（Distribution）：产辽宁、吉林、内蒙古等地，生于海拔300-2500米的林下、灌丛及高山草地。朝鲜也有。
用途（Use）：
引自中国植物志英文版FOC Vol. 20-21 Page 379, 401
Ligularia jamesii (Hemsley) Komarov, Trudy Imp. S.-Peterburgsk. Bot. Sada. 25: 697. 1907.
长白山橐吾 chang bai shan tuo wu| Asteraceae  | Ligularia
Senecio jamesii Hemsley in Forbes & Hemsley, J. Linn. Soc., Bot. 23: 453. 1888; Senecillis jamesii (Hemsley) Kitamura.
Stem erect, 30-60 cm tall, 4-5 mm in diam. at base, proximally glabrous, distally white arachnoid-puberulent. Basal leaves petiolate; petiole to 29 cm, slender, glabrous, base narrowly sheathed; leaf blade triangular-hastate, 3.5-9 cm, base 7-10 cm wide, abaxially glabrous, adaxially shortly yellow pilose, palmate-pinnately veined, margin sharply dentate, apex acute or acuminate; sinus ca. 1/2 as long as leaf blade, broad, basal lobes lanceolate, to 6 cm, segments to 2.5 cm, divergent, margin entire or 2- or 3-divided. Middle stem leaves shortly petiolate; sheath enlarged, to 4 cm, amplexicaul; leaf blade smaller, ovate-sagittate. Distal stem leaves numerous, sessile, bracteal, lanceolate, to 3 cm, margin subentire. Capitulum solitary, 5-7 cm in diam.; supplementary bracts linear-lanceolate. Involucre broadly campanulate, 15-17 × to 1.5 cm, outside white arachnoid-puberulent; phyllaries ca. 13, in 2 rows, lanceolate, ca. 3 mm wide, margin brown membranous, apex acuminate. Ray florets 13-16, yellow; lamina linear-lanceolate, to 4 cm × 3-4 mm, apex acuminate, 2- or 3-lobed; tube 5-6 mm. Tubular florets numerous, 1-1.1 cm; tube ca. 5 mm. Achenes dark brown, cylindric, 5-7 mm. Pappus pale yellow, as long as tubular corolla. Fl. and fr. Jul-Aug.
Forest understories, scrub, alpine meadows; 300-2500 m. Jilin, Liaoning, Nei Mongol [Korea].
（责任编辑：徐晔春）