≡Avonia prominens (G.Will.) G.Will.in Brit. Cact. Succ. J. 15: 208. 1997 syn. sec. ???2
1.APD 2007+: African Plant Database (version 4.0.0). – Conservatoire et Jardin botaniques de la Ville de Genève & South African National Biodiversity Institute, Pretoria – https://africanplantdatabase.ch/en, 2.