1) Tansy 1) Vine 
• (n.) A perennial rosaceous herb (Potentilla Anserina) having the leaves silvery white beneath.
Sil'ver·weed` noun (Botany) A perennial rosaceous herb ( Potentilla Anserina ) having the leaves silvery white beneath. 
Silverweed (Potentilla anserina) is a perennial herb of the family Rosaceae native to Britain and Europe, with a short rhizome and prostrate rooting stolons. The leaves are odd-pinnate with pairs of larger leaflets alternating with smaller ones. The leaflets are oval to rectangular, coarsely serrate and usually silvery on both sides, or sometimes o...
[n] - any of various twining shrubs of the genus Argyreia having silvery leaves and showy purple flowers 2. [n] - low-growing perennial having leaves silvery beneath
goose grass noun low-growing perennial having leaves silvery beneath; northern United States; Europe; Asia noun any of various twining shrubs of the genus Argyreia having silvery leaves and showy purple flowers