Subspecies, varieties, forms and cultivars of plants belonging to the Crassula perfoliata group

• Crassula perfoliata L.: (var. perfoliata) is little branched up to 1.3 m high, with lanceolate leaves erect and channelled above. The flowers are small, white and appear in the summer. Distribution: north of Port Elizabeth to Graaff-Reinet and Willowmore.
• Crassula perfoliata var. coccinea (Sweet) G.D.Rowley: has the red, larger flowers but its leaves are lanceolate-triangular, canaliculate and erect to spreading. Distribution: river valleys between Port Elizabeth and King William's Town.
  
• Crassula perfoliata var. falcata (J.C.Wendl.) Toelken: (syn: Crassula perfoliata var. minor) has very peculiar grey-green sickle-shaped leaves that are arranged in overlapping pairs along a usually unbranched stem. Flowers are bright red. Distribution: Eastern Cape.
• Crassula perfoliata var. heterotricha (Schinz) Toelken: is smaller (40 cm tall) and branched with erect leaves, has small white flowers appearing in the winter. Distribution: Umtata northwards through KwaZulu-Natal and Transvaal to south-east tropical Africa.
• Crassula perfoliata var. minor (Haw.) G.D.Rowley: is 20-50 cm tall and is rarely branched. The leaves are laterally flattened, falcate, greyish, has larger bright red flowers (rarely , pink or white). Distribution: Willowmore to East London, and north of the Kei River.