Variation
var. carinata
This variation is the most common and has leaves that are arranged in a rosette and have a tuberculate surface. Its habitat is restricted to the western and southern regions of the Riversonderend and Langrberg mountains.

var. glabra
This variation has distinctly smooth leaves and grows on the eastern side of the distribution area.

var.verrucosa
This variation has a grey green leaves are arranged oppositely and are covered densely in white tubercles.

Cultivars
'Great Brak'
This perennial succulent as smooth textured tongue shaped leaves that are faintly spotted white with an obtuse apex and are up to 100 mm (4 in) long by 25 mm (1 in) wide. It originated from the banks of the Great Brak River.

'Melkbos'
This perennial succulent is similar to the species but is larger with tuberculate leaves.

'Klein Brak' 
This perennial succulent as smooth triangular to spear-shaped leaves that are faintly spotted an up 210 mm (8 in) long by 45 mm (1¾ in) wide.

'Kykoedie'
This dwarfed perennial succulent as a short broad triangular leaves that are covered in tuberculates and are up to 60 mm (2⅜ in) long.

'Mossel Bay'
This perennial succulent has smooth linear leaves with an obtuse apex and is densely covered in spots that are arranged in transverse bands.