Found 2 items, similar to Ambrosia trifida.
English → English (WordNet) Definition: Ambrosia trifida Ambrosia trifida n : a coarse annual with some leaves deeply and palmately 3-cleft or 5-cleft [syn: great ragweed]
English → English (gcide) Definition: Ambrosia trifida 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]