bitterweeds

Meanings

Noun

• widespread European weed with spiny tongue-shaped leaves and yellow flowers; naturalized in United States
• any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma
• plural of bitterweed

Synonyms

ambrosia, bitterweed, bristly oxtongue, bugloss, oxtongue, Picris echioides, ragweed