WTF Wednesday, 1st Edition

I just moved to the Chicago region. My finace and I bought a dear little cottage that has been beautifully landscaped.

The only problem is that I have no clue what most things are, because I did my early gardening in a mid-Atlantic state.*

So I've decided to start a game - I'll call it 'WTF Wednesday.' Most weeks, I will try to post a photo of a plant that I do not know what it is, probably from my yard or garden plot, but I may take photos around Chicago if the mood so strikes me. Sorry to say, there are no prizes. You just get the personal satisfaction of having helped a fellow dirt grubber get to know who lives in her yard.

Let's get started.

This plant is ~3' tall and appears to grow alone or with one or two others. Here's its flower, which is in bloom now (mid-July):


Here's its leaf:


Thanks for playing.


* For example, it took a lot of Google-ing to figure out that this is Lady's (Ladies) Mantle (Mantel). Right?
Right??