1. In Africa occur 4 species of Parkia R.Br. (and two varieties); a fifth species introduced. 2. A key to these closely related taxa is given. 3. The taxa are described and the descriptions accompanied by references to literature, a survey of economic use, of biological or ecological facts, vernacular names are given, and the specimens examined cited. 4. The name P. clappertonicna Keay ought not to replace P. africana R.Br. 5. Seed-characters are decisive in distinguishing among 3 species.