D, I think there are quite a few different woods with the nickname ironwood. You should have some HHB growin around you somewhere. Its kind of an understory tree. The ones I found were growin with other big timber like oaks, hickories and ashes growin around them. I think around 12-14" diameter is about as big as they get. Hedgeapple, horseapple and bodark are all common names for osage.