ragweed
— Noun
– English
~ any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma
ragweed pollen
— Noun
– English
~ pollen of the ragweed plant is a common allergen
ragweed
— Noun
– English
~ widespread European weed having yellow daisylike flowers; sometimes an obnoxious weed and toxic to cattle if consumed in quantity
ragwort
— Noun
– English
~ American ragwort with yellow flowers
ragwort
— Noun
– English
~ widespread European weed having yellow daisylike flowers; sometimes an obnoxious weed and toxic to cattle if consumed in quantity