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conyza canadensis
Nounconyza canadensis has 1 sense
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 --1is a kind ofweed --1is a member of Conyza, genus Conyza