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western ragweed

DEFINITIONS OF: western ragweed

1

n coarse perennial ragweed with creeping roots of dry barren lands of southwestern United States and Mexico

Synonyms:
Ambrosia psilostachya, perennial ragweed
Type of:
ambrosia, bitterweed, ragweed
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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