Croton gratissimus var. gratissimus [family EUPHORBIACEAE]
Croton zambesicus Müll. Arg. [family EUPHORBIACEAE], in Flora 47: 483 (1864); in De Candolle, Prodr. 15, 2: 515 (1866). —Engler, Pflanzenw. Ost-Afrikas C: 237 (1895). —Hutchinson in F.T.A. 6, 1: 758 (1912), excl. spec. Gillet 320 & Seret 594. —R.E. Fries, Wiss. Ergebn. Schwed. Rhod.-Kongo-Exped. 1, 1: 122 (1914). —Eyles in Trans. Roy. Soc. South Africa 5: 395 (1916). —Prain in F.C. 5, 2: 416 (1920). —Engler, Pflanzenw. Afrikas (Veg. Erde 9) 3, 2: 47 (1921). —Burtt Davy, Fl. Pl. Ferns Transvaal: 302 (1932). —Bremekamp & Obermeyer in Ann. Transvaal Mus. 16, 3: 421 (1935). —O.B. Miller, Check-list For. Trees Shrubs Bech. Prot.: 32 (1948). —F.W. Andrews, Fl. Pl. Anglo-Egypt. Sudan 2: 61 (1952). —Keay in F.W.T.A., ed. 2, 1, 2: 394 (1958). —Drummond in Kirkia 10: 251 (1975). —Radcliffe-Smith in F.T.E.A., Euphorb. 1: 138 (1987). —Beentje, Kenya Trees, Shrubs Lianas: 194 (1994). Type: Mozambique, Manica e Sofala, Sena Hill, i.1859, Kirk Croton (2) (K, holotype).
Croton amabilis Müll. Arg. [family EUPHORBIACEAE], in Flora 47: 537 (1864); in De Candolle, Prodr. 15, 2: 516 (1866). —N.E. Br. in Bull. Misc. Inform., Kew 1909: 140 (1909). —Hutchinson in F.T.A. 6, 1: 757 (1912). —O.B. Miller, Check-list For. Trees Shrubs Bech. Prot.: 32 (1948). Syntypes from Nigeria.
Croton welwitschianus Müll. Arg. [family EUPHORBIACEAE], in J. Bot. 2: 338 (1864); in De Candolle, Prodr. 15, 2: 515 (1866). Type from Angola (Huíla).
Croton microbotryus Pax [family EUPHORBIACEAE], in Bot. Jahrb. Syst. 10: 35 (1888). Type from South Africa (Cape Province).
Croton antunesii Pax [family EUPHORBIACEAE], in Bot. Jahrb. Syst. 23: 523 (1897). Types from Angola (Huíla).