Osage orange

Here's an Osage orange tree (Maclura pomifera) that's been listed in the Purdue Arboretum collection.  This is on the north side of the Chemistry building. 

The arboretum marker is placed a bit far away.  The Osage orange is the tree in the background.  Pictures taken July 5, 2011.

Link to Maclura pomifera:

Link to Maclura pomifera:

Link to Purdue arboretum: