Dracaena transvaalensis
Dracaena transvaalensis, the Wolkberg dragon tree, is a medium-sized tree in the genus Dracaena found in the Olifants River Valley near Penge in the Limpopo and the adjacent Wolkberg. It looks similar to Aloe. The plant is considered rare. The tree's national number is 30.10. References 

Dracaena transvaalensis | PlantZAfrica
Threatened Species Programme | SANBI Red List of South African Plants

transvaalensis