The classification of the genus Lithops N.E.Br. presented here follows the official Lithops Research & Conservation Foundation (LRCF) Standard Taxonomic Treatment. This classification is based on the accepted LRCF taxonomic standard and incorporates current scientific knowledge. Photographs and detailed descriptions of individual taxa may be consulted in the principal taxonomic references Cole, Desmond T. (2005). Lithops – Flowering Stones. Revised Edition. and Earle, Roy A. (2021). Lithops in Habitat and Cultivation.

The LRCF recognises that taxonomic knowledge continues to evolve as additional field observations and scientific evidence become available. Future amendments to the official Lithops classification will only be considered when supported by sound scientific evidence and approved in accordance with the LRCF taxonomic review process.

To view an image of a specific Lithops taxon, move the cursor over the taxon name and select the camera icon. A photograph of the selected taxon will then be displayed.