I think it's wild aster, but I could be wrong. (Perish the thought!)<br /><br />edit:<br /><br />Well, I was mostly right. It's wild, and it's an aster. It's a lavender Savanna Aster (Symphyotrichum chapmanii).<br /><br />But if you see me in person, don't even ask me to quote the Latin name. I just google it up and copy and paste it to the description so's I'll look smart.