This project has been made possible by a research grant from the Arts and Humanities Research Council of Great Britain, whose assistance is gratefully ackowledged.

The typical and iconic species of the settler area is well adapted to a harsh and dry climate. It stores moisture in fleshy leaves fringed with spines; a further disincentive to foragers is the bitterness of its juice. In winter its candles of red flowers brighten the pale ochre of the dry veld.