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Từ điển WordNet v3.1 - WordNet Dictionary
horseweed
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
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