www.namibia-travel.net: The quiver tree or "Kokerboom" is indigenous to the hot and dry southern part of Namibia. The plants are succulents and can reach a height of up to 9 metres in height. They have adapted to the extreme environmental conditions by storing water in their trunks. The tree only blossoms for the first time after 20-30 years and can reach 300 years of age. The wood is very light and spongy inside.