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

synonyms: feabane mullet, Pulicaria dysenterica.

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

Polish: przymiotno

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

synonyms: Canadian fleabane, Conyza canadensis, Erigeron canadensis, horseweed.

Polish: konyza kanadyjska, przymiotno kanadyjskie