Found 2 items, similar to Bitterweed.
English → English (WordNet) Definition: bitterweed bitterweed n 1: widespread European weed with spiny tongue-shaped leaves and yellow flowers; naturalized in United States [syn: oxtongue, bristly oxtongue, bugloss, Picris echioides] 2: 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: ragweed, ambrosia]
English → English (gcide) Definition: Bitterweed Bitterweed \Bit"ter*weed`\, n. (Bot.) A species of Ambrosia (Ambrosia artemisi[ae]folia); Roman worm wood. --Gray. [1913 Webster]