Ann. Bot. Fenn. 24: 89 (1987). Type locality: Tanzania, Eastern Province, Morogoro District, Mindu Forest Reserve, 1978, Å. E. Dahl s.n. (O - holotype).
Type locality: Tanzania, Eastern Province, Morogoro District, Mindu Forest Reserve, 1978, Å. E. Dahl s.n. (O - holotype).