any of various twining shrubs of the genus Argyreia having silvery leaves and showy purple flowerslow-growing perennial having leaves silvery beneath; northern United States; Europe; Asia
同义词：goose-tansygoose grassPotentilla anserina
英汉双解大词典
silverweed/ˈsɪlvəˌwiːd/
1.
N（名词）
a rosaceous perennial creeping plant, Potentilla anserina, with silvery pinnate leaves and yellow flowers 银叶花属