great ragweed

2 definitions found

great ragweed - Collaborative International Dictionary of English v.0.48 :

  Ragweed \Rag"weed`\ (r[a^]g"w[=e]d`), n. (Bot.)
     A common American composite weed (Ambrosia artemisiaefolia)
     with finely divided leaves; hogweed.
     [1913 Webster]
  
     Great ragweed, a coarse American herb (Ambrosia trifida),
        with rough three-lobed opposite leaves.
        [1913 Webster]

great ragweed - WordNet (r) 2.1 (2005) :

  great ragweed
      n 1: a coarse annual with some leaves deeply and palmately
           three-cleft or five-cleft [syn: great ragweed, Ambrosia trifida
           ]