The fruits of this tree are bluish-black berries that are eagerly eaten by many types of wildlife.
This is a young tree...I hope it reaches 80ft!
Picture taked 10/25/2009 from a tree transplanted from the wild, now in my house.
Not all thorns are this large, but at 4+" , this is one to avoid for sure. Richmond TX z9a, 09/23/2012
Shiny, dark green, leathery foliage. Richmond TX, z9a, 09/23/2012
Foliage underside: furry and gray. Richmond TX, z9a, 09/23/2012
3' tap root on a 3' seedling. Richmond TX, z9a, 09/23/2012