My friend Luiz from Brazil does the Today's Flowers Meme, check it out. Come and join with your flower photos. Sunday at 7 GMT is the post time.
This is a small wild flower on a bush which I saw when I was in the Appalachian Mountain foothills. I'm not sure what it is called. They were about a 1/2" in size.
This wooded valley area was filled with Trillium. The woods were filled with the flower. If you click the photo you will see it better.