fleabane
 嵩,紫莞科植物
 Flea·bane n. Bot. One of various plants, supposed to have efficacy in driving away fleas. They belong, for the most part, to the genera Conyza, Erigeron, and Pulicaria.
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 fleabane
      n 1: hairy perennial Eurasian herb with yellow daisylike flowers
           reputed to destroy or drive away fleas [syn: feabane
           mullet, Pulicaria dysenterica]
      2: any of several North American plants of the genus Erigeron
         having daisylike flowers; formerly believed to repel fleas
      3: common North American weed with linear leaves and small
         discoid heads of yellowish flowers; widely naturalized
         throughout temperate regions; sometimes placed in genus
         Erigeron [syn: horseweed, Canadian fleabane, Conyza
         canadensis, Erigeron canadensis]