Crassula cultrata

A small, erect, branching shrub (20-80 cm in height) with rounded, yellow-green leaves that have sharp, red-brown, cartilaginous margins.

Each flower has black anthers and 3,5-4,5 mm long, cream coloured petals.

Crassula rogersii, another similar species that is also found in river valleys, is very much smaller, with leaves that are almost cylindrical.

[1][2] It occurs from near Swellendam and Ladismith in the west, throughout the Little Karoo and Overberg regions, and across the arid parts of the Eastern Cape Province.

Its habitat is usually rocky ridges and outcrops in scrub vegetation, often in river valleys (like Crassula rogersii).

Detail of foliage of a plant in cultivation
The sharp margins of the ob-lanceolate or knife-shaped ("cultrata") leaves can lose their reddish colour in the shade, as in this large specimen from the Eastern Cape.
Leaf detail of a specimen from Jansenville.
A form with more acute leaf apices