I've got a project where we collect leaves, classify them, etc. There are some required classifications. One of the requirements is to get a doubly-compound leaf. What are some trees that are doubly-compound? Please help! I have Hickory, but that's just compound I think.
Edit: I did try googling, but it's hard for me to know what's available in my region.
From Comments: I live in Tennessee, U.S.