资料来源 : WordNet®

frost-weed
     n 1: perennial of the eastern United States having early solitary
          yellow flowers followed by late petalless flowers;
          so-called because ice crystals form on it during first
          frosts [syn: {frostweed}, {frostwort}, {Helianthemum
          canadense}, {Crocanthemum canadensei}]
     2: tall perennial herb having clusters of white flowers; the
        eastern United States [syn: {Virginia crownbeard}, {frostweed},
         {Verbesina virginica}]