I don't mean to split hairs with the Log Splitter but according to what I have read about Zanthoxlum parvum, it grows up to about 6 feet tall and has compound leaves. It's a bush from Texas and a much better one than what most of us have been experiencing for a number of years.
It's a bush.
See Elmore, that's what I get for trying to act like I knew something. I have a tree like that on my place, and the old man up the road calls it a Tickletounge, and the bark does numb your up. So when this thread got started I did a search and came up with
Zanthoxlum parvum . Since I know my tree is not a bush I did another search and came up with
Zanthoxylum clava-herculis .
That's why us farmboys should not be allowed to have computers.
BTW, I don't advise anyone to do a Google search on 'tickletounge'. Most of what come back has nothing to do with trees.
As for the Bush from Texas, I'll keep my opinions to myself.