Definitions for ragweed

Overview of noun ragweed

The noun ragweed has 2 senses? (no senses from tagged texts)

1. ragwort, tansy ragwort, ragweed, benweed, Senecio jacobaea

(widespread European weed having yellow daisylike flowers; sometimes an obnoxious weed and toxic to cattle if consumed in quantity)

2. ragweed, ambrosia, bitterweed

(any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma)