Good ol worthless knowledge coming through again! Haha. That is a wicked looking plant. The one I saw was right near a river bank but after looking at google it apparently came from China where it was used for hedges. Pretty cool
The 'fruit' is sort of out of focus.....can't see if it is smooth or 'bumpy'?
Typically Osage{Maclura pomifera} will have a dark color, but not always(it depends on the soil and nutrients in the soil), but it generally is always 'bumpy'.