Help ID tree with thorny trunk
I'm helping a friend remove or relocate trees that aren't doing well or are inappropriate under his mature oak trees in Los Angeles. A bunch of strange planting choices were made. For instance, I've seen this tree used as a street tree. It looks tropical but I have no idea what it is. I only have a photo of the trunk, which I think is distinctive enough to ID it, I hope. Anyone know what it is? Thanks!