clotbur
/ˈklɒtbɜː(r)/noun
1- a herbaceous plant of the daisy family, with burred fruits. It originated in tropical America but is now cosmopolitan.苍耳。参见COCKLEBUR.
1.1
- Genus Xanthium, family Compositae: two or three species, in particular spiny clotbur (X. spinosum).苍耳属, 菊科：2或3种, 尤指刺苍耳（拉丁名X. spinosum）。
1.2
- chiefly N. Amer. a burdock〈主北美〉牛蒡。
词源
mid 16th cent.: from dialect clote 'burdock' + BUR.