One of the brightest flowers of the swamp or streamside in our area is the wild Yellow Iris.
At the other extream of soil, in sunny, dry, sandy, hot railway banks, there grows the Hairy Beardtongue.
And for those of you that might not know, Poison Ivy too has a flower. Sorry this photo is not too sharp but the plants are just beginning to bloom and I was not willing to crawl into the middle of the patch for this photo. I'll try for a better photo when I can find a plant in bloom next to the path.