The tip of the deciduous glochid, a leaf spine of an Opuntia, has barbs that cause this harpoon to become lodged in the skin. This is a highly magnified viewed with the aid of a scanning electron microscope.
The tip of the deciduous glochid, a leaf spine of an Opuntia, has barbs that cause this harpoon to become lodged in the skin. This is a highly magnified viewed with the aid of a scanning electron microscope.