Ambrosia artemisiifolia

Definitions of Ambrosia artemisiifolia
  1. noun
    annual weed with finely divided foliage and spikes of green flowers; common in North America; introduced elsewhere accidentally
    synonyms: common ragweed
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    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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