Larryleachia marlothii is a summer-flowering succulent plant native to Namibia and southern Angola.

Grey-green and sometimes brown, Larryleachia marlothii grows as a separate, cylindrical stem of up to 6 inches tall spiralled with 12–19 ribs of blunt mammillae.

Flowers appear in the summer and feature a dark, spotted, 5-pointed corolla and a distinct cross shape in the centre.

Larryleachia marlothii can be grown as a graft on Ceropegia tubers.

It must be kept in a brightly lit location throughout the winter.