that one is very difficult. I've never spent so much time on one of these.
right away, it reminded me of Ailanthus leaves, something exotic. Looks like evenly pinnately compound leaves.
and that rough shaggy bark....
I thought those distint clues would be an easy find on the internet. So that got me started looking.
No.
Hours later.... when I shouldn't have. I looked at a million compound leaf species, too many times stupid hickory kept coming up, but I strongly felt it isn't a hickory. Then when looking up even pinnately compound leaves and a million more sites and pictures.
I have a REAL hard time quiting when I start something.
I found one that had similar bark and leaf.
Chinese Pistachio, now i can go to bed.
I figure you saw it at some New York Garden/botanical place. Chinese Pistacio is cold hardy, so that's my pick.
tell me I'm right.... please....