horseweed
1.
(
noun
) 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
,
fleabane
Related Words:
weed
2.
(
noun
) erect perennial strong-scented with serrate pointed leaves and a loose panicle of yellowish flowers; the eastern United States
Synonyms:
Collinsonia canadensis
,
horse balm
,
richweed
,
stone root
,
stoneroot
Related Words:
herb
,
herbaceous plant
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