Circandra in Gard. Chron., ser. 3, 87: 126. 1930 sec. Hartmann (2001a)
- Type: Circandra serrata
A monotypic genus; its only species was already known to Linnaeus as Mesembryanthemum serratum L. The area where the species was previously recorded has been subject to extensive cultivation, so the species had been thought to be extinct. However, it was rediscovered in 2007 and is currently considered as critically endangered (Klak & Low 2007). The hypanthium found in the flowers suggests a close relationship with Erepsia, where this species had been included previously (as E. serrata (L.) L. Bolus).