Erythrina caffra is often confused with Erythrina lysistemon, the Common Coral tree. Erythrina caffra grows in the coastal and riverine fringe forests from Port Shepstone in KwaZulu-Natal to the Humansdorp District in Eastern Cape and in a pocket further north on the KwaZulu-Natal coast. It is generally taller than Erythrina lysistemon, the flowers are orange-scarlet, and a cream-flowered form is occasionally seen, and the standard petal is shorter and broader so that the stamens stick out of the flower giving it a whiskered look. In most other respects they are very similar, and were in fact regarded as the same variable species for many years and, when not in flower, are difficult to tell apart.

Similar plants:

• Butea monosperma, Butea frondosa, Erythrina monosperma (Flame of the Forest, Dhak, Palas, Bastard Teak, Parrot Tree)
• Erythrina abyssinica, Erythrina tomentosa (Coral Tree)
• Erythrina amazonica (Amazon Coral Tree)
• Erythrina bidwillii (Indian Coral Tree, Bidwell's Coral Tree)
• Erythrina coralloides (Naked Coral Tree)
• Erythrina crista galli, Erythrina laurifolia (Cry Baby Tree, Cockspur Coral Tree, Cock's Comb Coral Tree)
• Erythrina decora (Namib Coral Tree)
• Erythrina edulis (Chachafruto)
• Erythrina fusca, Erythrina glauca (Cape Kaffirboom, Gallito, Coral bean, Bois Immortelle)
• Erythrina herbacea (Coral tree, Coral bean, Cardinal-spear, Cherokee-bean)