As nouns the difference between goldenseal and ragweed

is that goldenseal is species: Hydrastis canadensis, a perennial herb of the buttercup family, native to southeastern Canada and the northeastern United States, with a thick, yellow knotted rootstock and diverse medicinal properties while ragweed is a plant of the genus Ambrosia. These weeds are particularly noted for producing pollen which people with hay fever are allergic to.