That's why I just learned to call it ashleaf maple - who the heck came up with Box Elder? - then I find thisBox Elder, also called Ashleaf Maple. It is related to maples, but the leaves look like ash leaves, hence the name. I think the wood is softer, and thus less dense, than most other maples. I'd categorize it as decent firewood.
They grow back from the stump or roots. Its a weed. My BIL cut one down to a stub and it grew back with a vengance.
Renewable energy.
Box Elder and Ash leaf Maple are both correctly used, it has winged samaras that puts it in the maple class.
This is the only tree I feel repugnance for. The leaves look like Poison Ivy and it gives me the creeps.