dendrology : study of trees
I love trees and this one in particular caught my attention during my last vacation in Central Chile. It is called palo borracho (drunken tree). Please note the thick conical thorns in clusters on the trunk, it certainly is a special tree.
Update: "Note, too, that in South America there's a tree called Chorisia speciosa that, because of its twisted shape, is nicknamed "the drunken tree" (in Spanish it's palo borracho, "drunken stick"). Source