Found 2 items, similar to Great ragweed.
English → English (WordNet) Definition: great ragweed great ragweed n : a coarse annual with some leaves deeply and palmately 3-cleft or 5-cleft [syn: Ambrosia trifida]
English → English (gcide) Definition: Great ragweed Ragweed \Rag"weed`\ (r[a^]g"w[=e]d`), n. (Bot.) A common American composite weed (Ambrosia artemisi[ae]folia ) with finely divided leaves; hogweed. [1913 Webster] Great ragweed, a coarse American herb (Ambrosia trifida), with rough three-lobed opposite leaves. [1913 Webster]