The New Zealand native, Corokia cotoneaster, is a contorted shrub with a stunning architectural form. Corokia is at its best when used in containers or against a light-colored background so the interesting form and black branches are highlighted. Without a strong background, it can get lost in a complicated planting arrangement. While it does have yellow flowers in the spring, and orange berries in the fall, Corokia is typically grown for its contorted form.
It is thought that the form evolved to protect itself from grazing by oversized (now extinct, probably caused by humans), flightless birds called Moas. It is not known if the form now protects against the modern day ravages of deer and rabbits.