I found these in central NJ:
Looks like a penstemon.
The leaves were willow-y.
A legume - cow vetch?
Do a Google image search for cow vetch - I think you'll find it.
Yep, Vetch. It's a climber, a tangler.
It's vetch. Very pretty. Often considered a weed by some but so pretty and "nitrogen" fixing I don't think its so bad. But in the garden it needs room to roam. ;)