鶴金梅的一種
Silverweed \Sil"ver*weed`\, n. (Bot.) A perennial rosaceous herb ({Potentilla Anserina}) having the leaves silvery white beneath.
silverweed n 1: any of various twining shrubs of the genus Argyreia having silvery leaves and showy purple flowers 2: low-growing perennial having leaves silvery beneath; northern United States; Europe; Asia [syn: {goose-tansy}, {goose grass}, {Potentilla anserina}]