ALL meanings of ragweed
rag·weed
R r - noun ragweed plant: flowering weed 1
- noun ragweed any of the composite plants of the genus Ambrosia, the airborne pollen of which is the most prevalent cause of autumnal hay fever, as the common North American species, A. trifida (great ragweed or giant ragweed) and A. artemisiifolia. 1
- uncountable noun ragweed Ragweed is a plant, found mainly in North America, that produces large amounts of pollen, which causes hay fever. 0
- noun ragweed any plant of the chiefly North American genus Ambrosia, such as A. artemisiifolia (common ragweed): family Asteraceae (composites). Their green tassel-like flowers produce large amounts of pollen, which causes hay fever 0
- noun ragweed any of a genus (Ambrosia) of chiefly North American plants of the composite family, having tassel-like, greenish flowers which yield large amounts of wind-borne pollen, a major cause of hay fever 0