Bright and cheery yellow sunflowers are popping up everywhere — in ditches along roadways, in open fields, along fence lines and from woodlands to swampy areas. Spread among other native species such as goldenrod ( Solidago spp.), blue mistflower ( Conoclinium coelestinum) and late boneset ( Eupatorium serotinum), they dot the fall landscape like a painting of a serene meadow of flowers.