NOUN | plant | Ambrosia trifida, great ragweed | a coarse annual with some leaves deeply and palmately three-cleft or five-cleft |
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Meaning | A coarse annual with some leaves deeply and palmately three-cleft or five-cleft . | |
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Synonym | great ragweed | |
Broader | ragweed, ambrosia, bitterweed | Any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma |
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