groundsel
/ˈgraʊndsəl/noun
1- a widely distributed plant of the daisy family, with yellow rayless flowers千里光。
1.1
- Genus Senecio, family Compositae: several species, in particular the common groundsel (S. vulgaris), which is a common weed.千里光属, 菊科：数种, 尤指欧洲千里光（拉丁名S. vulgaris）, 系常见野草。参见GIANT GROUNDSEL.
词源
Old English gundæswelgiæ（later grundeswylige）， probably from gund 'pus' + swelgan 'to swallow' (with reference to its use in poultices). The later form may be by association with GROUND, and refer to the plant's rapid growth.