Bittersweet

...or rather, it's evil cousin.  This bittersweet came from Asia about 150 years ago and is invading the territory of our native bittersweet, and worse, killing our trees.  It's a pretty death - the vines are loaded with orange berries this time of year.  Last month they looked like this as the outer shell was just beginning to peel back from the berries:

Now the leaves have fallen off and the shells have peeled off the berries, leaving a gorgeous tangle of orange:

It's beautiful, and before next spring I'll rip out this vine and begin the endless battle to keep it from returning and choking out another tree.