Gibbaeum nebrownii
Gibbaeum nebrownii in Kakteen And. Sukk. 1: 151. 1937 sec. Thiede 20171
- ≡Imitaria muirii in J. Bot. 65. 1927 syn. sec. Thiede 20171
- =Gibbaeum johnstonii in Bradleya 14: 14. 1996 syn. sec. Thiede 20172
- ≡Gibbaeum nebrownii var. johnstonii in Astridia 3: 39. 1998 ["1997"] syn. sec. Thiede 2017 [Subspecies acc. to IPNI & WCVP, Variety acc. to Thiede 2017.]. 2
- ≡Gibbaeum nebrownii subsp. johnstonii in Astridia 3: 39. 1998 ["1997"] syn. sec. IPNI 2000+: 4 jul 20203
- 2. Thiede 2017: Gibbaeum, Tribulocarpus. – In: Hartmann, H. E. K., Illustrated handbook of succulent plants. Aizoaceae, ed. 2. – Berlin: Springer, 3. IPNI 2000+: International Plant Names Index. – The Royal Botanic Gardens, Kew, Harvard University Herbaria & Libraries and Australian National Botanic Gardens – http://www.ipni.org: 4 jul 2020