The Radio tree (Acacia robynsiana) is a long tree, with wiry branches that can sometimes reach a height of up to 8m. It occurs only in Kaokoland in north-western Namibia and in the Namib Desert that extends into Angola. It is recognizable by the a dense thicket of short branches that are clustered around the base of the plant, allowing it a shrubby appearance. Scattered along the branches are a series of hooked thorns and cream-coloured flowers appear in long clusters. Other distinguishing features include long and papery pods.
Acacia robynsiana are a red-listed species and protected under the Forestry Ordinance. They grow only in rocky habitats, more often than not on slopes and the top of ridges. There are 27 Acacia species recorded in Namibia, off which many are similar looking.