A member of the buttercup family and found in the open woodlands, rue anemone (Thalictrum thalictroides) has long, thin stems that tremble in the slightest of winds—prompting its other common name, windflower.
Seek out spotted jewelweed growing beside a stream or along a moist area and you will have a good chance of getting to watch one or more ruby-throated hummingbirds flit from flower to flower.