Dracaena cinnabari, the Socotra Dragon Tree or Dragon Blood Tree, is a Dragon Tree native to the Socotra archipelago in the Indian Ocean. It is so called due to the red sap that the trees produce. Dracaena Cinnabari by Jan Vandorpe.
A Quiver Tree in Spitzkoppe, Namibia. Because bushmen use it's branches to make quivers, the aloe dichotoma, or kokerboom, is known as the quiver tree. It is a species of aloe indigenous to Southern Africa and parts of Southern Namibia.