What IS this?

I love Sundays because I can take the camera out and just walk. The last vestiges of the cold, cold storm that hit Friday were still hanging over us and I made it back to the house just in time. One of the sights today was this weird tree. It’s kind of stickery with these green avocado-shaped pods hanging off. This photo is the joining of two of them — branches reaching out and entwining in a random kind of way. It’s evocative, but I have absolutely no idea what this tree is. Does anyone know?