goose-grass

from The Collaborative International Dictionary of English v.0.48

goose-grass \goose-grass\ n. (Bot.),
   A low-growing perennial ({Potentilla anserina}) having leaves
   silvery beneath; foundin Northern U. S., Europe, and Asia.

   Syn: silverweed, goose-tansy, {Potentilla anserina}.
        [WordNet 1.5]