horseweed

horse·weed

H0285800 (hôrs′wēd′)n. A weedy North American annual plant (Conyza canadensis) in the composite family, having a tall erect stem, narrow leaves, and numerous small whitish flower heads grouped in panicles. Also called mare's tail.

horseweed

(ˈhɔːsˌwiːd) n (Plants) the US name for Canadian fleabane. See fleabane³

horse•weed

(ˈhɔrsˌwid)

n. a North American composite weed, Erigeron canadensis, having narrow hairy leaves and clusters of very small greenish flowers. [1780–90]

Horseweed

An annual common throughout North America. It grows as high as six feet and during the Depression years of the 1930s was sometimes pulled up and fed to livestock.

Thesaurus

Noun	1.	horseweed - erect perennial strong-scented with serrate pointed leaves and a loose panicle of yellowish flowers; the eastern United StatesCollinsonia canadensis, horse balm, richweed, stone root, stoneroot, stone-rootherb, herbaceous plant - a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pestsCollinsonia, genus Collinsonia - small genus of perennial erect or spreading aromatic herbs; United States
	2.	horseweed - common North American weed with linear leaves and small discoid heads of yellowish flowers; widely naturalized throughout temperate regions; sometimes placed in genus ErigeronCanadian fleabane, Conyza canadensis, Erigeron canadensis, fleabaneConyza, genus Conyza - common American weed or wildflowerweed - any plant that crowds out cultivated plants