hairy perennial Eurasian herb with yellow daisylike flowers reputed to destroy or drive away fleas | street names for marijuana |
any of several North American plants of the genus Erigeron having daisylike flowers; formerly believed to repel fleas | a black band worn by a man (on the arm or hat) as a sign of mourning |
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 plant that crowds out cultivated plants |