I know this thread is ancient. Any plant that grows seeds (pods) like peas, peanuts, etc., are in the family called legumes. Anyway, I have enough Acacia (not sure of the species) to make a small box. Also, my avatar/photo is a mortar and pestle made from spalted Acacia saligna.It was once a tree in my backyard that died when 4 consecutive nights of below freezing temps hit where I am in Arizona. I cut the tree down leaving 4 feet of the trunk in the ground. I figured this would give me good leverage to pull the whole thing out once it rotted. It worked. I pulled it up 2-4 years later and chopped it into lathe sized blanks. That mortar and pestle this the result. I still have 2 decent sized logs in my garage.
This past summer (monsoon season) the wind took down a full grown acacia tree in my neighborhood. When they were cutting it up for disposal I stopped and took about 20 logs. Some I could barely lift. I sealed the end grain, set them on pallets, and covered them with a tarp. I think I have enough Acacia to last a lifetime now. If anyone is interested in pictures and/or willing to pay for shipping, I'll gladly send a log your way.