长裂苦苣菜

本种与全叶苦苣菜的主要区别：一年生草本；叶羽状深裂，侧裂片披针形、长披针形或三角状披针形。

分布：日本、蒙古、俄罗斯远东地区

产地：黑龙江、吉林、内蒙古、陕西、河北及山东

生境：山地草坡、河边或碱地

海拔：350-2260米

Sonchus brachyotus DC., Prodr. 7 (1): 186. 1838; Ledeb., Fl. Ross. 2: 835. 1845-1846; Debeaux in Act. Soc. Linn. Bordeaux 30: 91. 1875; Kitamura in Act. Phytotax. Geobot. 15: 76. 1953; S. Y. Hu in Quart. Journ. Taiwan Mus. 21 (3-4): 164. 1968; Boulos in Bot. Notis. 126: 182. 1973; Lauener in Notes Royal Bot. Gard. Edinb. 34: 397. 1976; ——S. chinensis Fisch., Hort. Gorenk. 33. 1812. nom. nud. ——S. shzucinianus Turcz. ex Herd. in Bull. Soc. Nat. Mosc. 43: 189. 1870.——S. fauriei Levl. in Fedde, Rep. Sp. Nov. 7: 102. 1909.——S. taquetii Levl. in Fedde, Rep. Sp. Nov. 8: 141. 1910; Nakai in Journ. Coll. Sci. Imp. Univ. Tokyo 31: 508. 1911. ——S. cavaleriei Levl. in Fedde, Rep. Sp. Nov. 8: 451. 1910.——S. arvensis L. var. laevipes Koch, Syn. 434. 1837. ed. 2. 499. 1844; Hand. ——Mazz., Symb. Sin. 7: 1179. 1936 et in Act. Hort. Goth. 12: 350, 1938. ——S. arvensis auct. non L.: Levl., Fl. Kouy-Tcheou 108. 1914.——S. aruensis L. subsp. brachyotus (DC.) Kitamura in Mem. Coll. Sci. Univ. Kyoto Ser. B, 23: 148. 1956. ——S. arvensis L. f.brachyotus (DC.) Kirp. in Fl. URSS 29: 253. 1964.