Fleabane

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.

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

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

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