This vine is taking over my back garden...and I didn't plant it. Location: Columbus, Ohio, USA Beautiful quick-growing vine, no scent to the flowers, not really a climbing vine, just draping itself over all my other flowers, was easy to pull up and out of the flower bed. Did keep one plant till I find out exactly what it is, and if it's an invasive. If I don't get an answer right away, will take another photo with ruler to show size.
Vetch, an old agricultural plant grown as forage. Has been used to stabilize slopes and prevent erosion.