What a unique flower. I love the delicate beauty of the flower while it is somewhat surrounded with a lot of intricate, interconnected thorns and weaves. It is quite a contrast and a beautiful picture. Maybe they call it a Turk's head because the thorns kind of seemed like they are tied up like a Turk's head knot. The fish hook is probably because the large thorns are sort of shaped like a fish hook. I really don't know but a I gave it a try at guessing. Thank-you for sharing such unique flowers that I have never seen before. :D