Gymnosporia heterophylla
 Gymnosporia heterophylla (Common Spike-thorn) is a small hardy deciduous African tree up to 5m tall occurring in rocky places with a wide distribution from Ethiopia the Sudan and the Congo south to the Cape Province and west to Angola and Namibia as well as the neighbouring islands of Madagascar and Saint Helena with a closely related species from Mauritius.It has a straggly but rigid habit and is armed with sharp straight thorns up to 100mm long which are modified branches.