- kaffir boom, Transvaal kafferboom, Erythrina lysistemon - small semi-evergreen of South Africa having dense clusters of clear scarlet flowers and red seeds
--1 is a kind of coral tree, erythrina
- kaffir boom, Cape kafferboom, Erythrina caffra - small semi-evergreen broad-spreading tree of eastern South Africa with orange-scarlet flowers and small coral-red seeds; yields a light soft wood used for fence posts or shingles
--2 is a kind of coral tree, erythrina