common ragweed

Thesaurus

Noun

1.

common ragweed - annual weed with finely divided foliage and spikes of green flowers; common in North America; introduced elsewhere accidentallyAmbrosia artemisiifoliaambrosia, bitterweed, ragweed - any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma