To keep up with the Ailanthus similarities I accidentally gave earlier: it reproductively similar to Ailanthus (but the seeds are drastically different than Ailanthus).
If nobody else is gonna post, I'll put this one up for kicks. I think these are fairly common out west, but a bit of a novelty here in NW Ohio. First time I had a passenger riding along to get a decent picture as we drove by... He zoomed in more than I wanted, but it will have to do.