Common ragweed (Ambrosia artemisiifolia) flowers are yellowish-green and small. They grow in clusters up to six inches long near the top of the plant. Male and female flowers are in separate heads on the same plant, the male flowers, usually drooping, are at the top of the plant, while the female flowers are in the upper leaves and bases of leaves. Common ragweed produces abundant pollen that is a common allergen to humans. But humans are not the only animals on the planet. Ragweed is a good source of food and cover for wildlife. Eastern Cottontails eat the plants, and insects, such as grasshoppers, eat the leaves. Some animals which eat ragweed seeds include: Meadow Vole, Dark-eyed Junco, Brown-headed Cowbird, Northern Bobwhite, Purple Finch, Mourning Dove, American Goldfinch, and Red-bellied Woodpecker.