Conophytum swanepoelianum subsp. swanepoelianum sec. Hammer & A.J.Young 20171 wfo-0001435254
1.Hammer, S. A. & A.J.Young 2017: Conophytum - Ruschioideae. – In: Hartmann, H. E. K., Illustrated handbook of succulent plants. Aizoaceae, ed. 2. – Berlin: Springer
