Robert Geranium (Geranium robertianum) 2009 spring/summer, somewhere along the Blue Ridge Parkway - by Deb Kirtland

introduced - Wikipedia says in the state of Washington it's known as Stinky Bob and classified as a noxious weed. (Stinky Bob because when the leaves are crushed they smell like burned rubber. This is supposedly an insect repellant when rubbed on the skin.)