I've had Maple which was dead standing, it was ok once you took off quarter of an inch of wood.
I've even used Hazel which was starting to discolour, just for a try out (1 hour bow) and it worked... it wood have kept the zombies away from the cabin for a while.
The bottom line is, cut into it and see. Face it you can cut live wood and find it's no good...you have to expend some energy to find out if stuff is good, try making a quick test bow out of it.
It's how we all learn.
Del