ragweed

Từ điển Oxford Learners Wordfinder Dictionary

noun

1. any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma
• Syn:
ambrosia, bitterweed
• Hypernyms:
weed
• Hyponyms:
common ragweed, Ambrosia artemisiifolia, great ragweed, Ambrosia trifida, western ragweed,
perennial ragweed, Ambrosia psilostachya
• Member Holonyms:
genus Ambrosia
2. widespread European weed having yellow daisylike flowers;
sometimes an obnoxious weed and toxic to cattle if consumed in quantity
• Syn:
ragwort, tansy ragwort, benweed, Senecio jacobaea
• Hypernyms:
weed
• Member Holonyms:
Senecio, genus Senecio

• Từ đồng nghĩa / Synonyms:
  ambrosia, bitterweed, ragwort, tansy ragwort, benweed, Senecio jacobaea