| ≡ syn. | Royena pallens· Thunb. | |
| Thunberg, C. P. (1794) Prodr. pl. cap. pars prior: 80. | ||
| Thunberg,C.P. s.n. [s.d.]; Synypi: K (fragment), LD1259124, UPS-THUNB | ||
| Burchell,W.J. s.n. [1750] [s.d. [1811-10-28]]; Syntypus: UPS-THUNB | ||
| Ecklon,C.F. & Zeyher,C.L.P. s.n. [s.d.]; Lectotypus: UPS-THUNB; Syntypus: S-G-5356 | ||
| ≡ syn. | Royena pallens· Thunb. var. pallens | |
| — | ||
| = syn. | Royena ambigua· Salisb. | |
| Salisbury, R. A. (1796) Prodr. stirp. Chap. Allerton : 285. | ||
| Anonymous collector s.n. [s.d.]; | ||
| = nom. nud. | Royena brachiata· E. Mey. | |
| Drège, J. F. (1837) Cat. Pl. Afr. Austral. (Drège) 1: 7. | ||
| Drège,J.F. s.n. [s.d.]; Typus: HAL0116352 | ||
| = syn. | Royena brachiata· E. Mey. ex A. DC. | |
| Candolle, A. L. P. P. de (1844-03) Prodr. (DC.) 8: 213. | ||
| Drège,J.F. s.n. [s.d.]; Typus: G | ||
| = pro syn. | Royena cuneata· Spreng. | |
| Sprengel, C. P. J. (1825-01) Syst. veg. (ed. 16) [Sprengel] 2: 360. | ||
| — | ||
| = nom. nud. | Royena cuneifolia· E. Mey. | |
| Drège, J. F. (1837) Cat. Pl. Afr. Austral. (Drège) 1: 7. | ||
| Drège,J.F. s.n. [s.d.]; Typi: HAL0116356, HAL0116357, HBG507358, REG000518, S-G-5358 | ||
| = syn. | Royena cuneifolia· E. Mey. ex A. DC. | |
| Candolle, A. L. P. P. de (1844-03) Prodr. (DC.) 8: 214. | ||
| Drège,J.F. s.n. [s.d.]; Typi: G, HAL (2 sheets) | ||
| Burchell,W.J. Plant. Afr. extr. trop. 1750; Syntypus: in h. DC | ||
| = syn. | Royena decidua· Burch. | |
| Burchell, W. G. (1822) Trav. S. Africa 1: 317. | ||
| Burchell,W.J. 1750; Typus: K | ||
| = misappl. | Royena hirsuta· Jacq. | |
| Jacquin, N. J. von (1797) Collectanea [Jacquin] 5: 110-111. tab. 13, fig. 1 | ||
| Anonymous collector s.n. [s.d.]; | ||
| = pro syn. | Royena hispidula· Harv. ex Hiern | |
| Hiern, W. P. (1873-04) Trans. Cambridge Philos. Soc. 12 (1): 85. | ||
| Burchell,W.J. 3789; Syntypi | ||
| Burchell,W.J. 4501; Syntypus | ||
| = pro syn. | Royena oleifolia· Desf. ex Hiern | |
| Hiern, W. P. (1873-04) Trans. Cambridge Philos. Soc. 12 (1): 85. | ||
| — | ||
| = syn. | Royena pallens· Thunb. var. dregei A. DC. | |
| Candolle, A. L. P. P. de (1844-03) Prodr. (DC.) 8: 214. | ||
| Drège,J.F. s.n. [s.d.]; Typus: G | ||
| = syn. | Royena pubescens· Willd. | |
| Willdenow, C. L. von (1809-04) Enum. Pl. [Willdenow] pars 1: 457. | ||
| Anonymous collector s.n. [s.d.]; Typus: B (putatively destroyed; photo: PRE) | ||