Orbea wissmannii var. eremastrum (O.Schwartz) Bruyns, Aloë 37: 76 (2000).
Homotypic Names:
- * Caralluma eremastrum O.Schwartz, Mitt. Inst. Allg. Bot. Hamburg 10: 194 (1939).
- Pachycymbium eremastrum (O.Schwartz) M.G.Gilbert, Bradleya 8: 24 (1990).
- Angolluma eremastrum (O.Schwartz) Plowes, Excelsa 16: 118 (1994).
- Orbea wissmannii subsp. eremastrum (O.Schwartz) Mosti & Raffaelli, Asklepios 110: 14 (2011).
- * Basionym/Replaced Synonym