CRISTATUS (Haworth) Lemaire, 1852
Synonym : Cotyledon cristata Haworth (1827)
Section Longipedunculati
Distribution : RSA
Five varieties :
Adromischus cristatus var. clavifolius (Haworth) Tölken, 1978
Adromischus cristatus var. cristatus
Adromischus cristatus var. mzimvubuensis van Jaarsveld, 2003
Adromischus cristatus var. schonlandii (E. Phillips) Tölken, 1978
Adromischus cristatus var. zeyheri (Harvey) Tölken, 1978