whitlow-grass
/ˈhwɪtləʊgrɑːs/noun
mass noun
1- a dwarf European plant with a rosette of leaves at the base of a low flowering stem, growing widely on rocks and walls. It was formerly believed to cure whitlows.瘭疽草。
1.1
- Genus Erophila, family Cruciferae: several species, in particular E. verna.绮春属, 十字花科：数种, 尤指春绮春。