1. (

• fleabane ,
• feabane_mullet ,
• Pulicaria_dysenterica

) hairy perennial Eurasian herb with yellow daisylike flowers reputed to destroy or drive away fleas ;

2. (

• fleabane ,

) any of several North American plants of the genus Erigeron having daisylike flowers; formerly believed to repel fleas ;

3. (

• horseweed ,
• Canadian_fleabane ,
• fleabane ,
• Conyza_canadensis ,
• Erigeron_canadensis

) common North American weed with linear leaves and small discoid heads of yellowish flowers; widely naturalized throughout temperate regions; sometimes placed in genus Erigeron ;