Tree ID
I use the Nat Audubon Society Field Guide to North American Trees. It handy as it fits in your back pocket. Good color photos of the leaves, bark, fruit and flower brief description and fall colors. I have some posters from the DNR that have frogs and turtles common to the areas and I've wondered why the DNR doesn't put out a similar one for trees. Not covering all trees just the common ones in the state.
We have primarily hardwoods by me which all split and burn nicely but we do have cottonwood, basswood and box elder as some softer woods but they all burn. I was thinning some basswood and decided to burn it this year. It burns fast but it's heating ok with the mild weather. Just split it when you cut it or else it gets difficult to split. Gets light as a feather when dry. The wood all has the same BTU's by weight.
Osage orange does burn hot it also sparks a lot when you open the door and the rush of air hits it so be careful. If you find a good straight piece, bow makers will pay pretty good money for it. Pretty common in old property lines as they made a natural fence line. Can be tough to split as it rarely grows straight.