horseweed

Từ điển Oxford Learners Wordfinder Dictionary

noun

1. common North American weed with linear leaves and small discoid heads of yellowish flowers;
widely naturalized throughout temperate regions;
sometimes placed in genus Erigeron
• Syn:
Canadian fleabane, fleabane, Conyza canadensis, Erigeron canadensis
• Hypernyms:
weed
• Member Holonyms:
Conyza, genus Conyza
2. erect perennial strong-scented with serrate pointed leaves and a loose panicle of yellowish flowers;
the eastern United States
• Syn:
horse balm, stoneroot, stone-root, richweed, stone root, Collinsonia canadensis
• Hypernyms:
herb, herbaceous plant
• Member Holonyms:
Collinsonia, genus Collinsonia