Esterhuysenia Esterhuysenia L.Bolus in J. S. African Bot. 33: 308. 1967 sec. Jaarsveld 20171Type: Esterhuysenia alpina L.Bolus1. Jaarsveld, E. J. 2017: Esterhuysenia. – In: Hartmann, H. E. K., Illustrated handbook of succulent plants. Aizoaceae, ed. 2. – Berlin: SpringerContentNotes Notes A small genus with five species endemic to the Cape of South Africa. See further notes under Hammeria.