Leidesia is a monotypic plant genus in the family Euphorbiaceae first described as a genus in 1866.

[2][3] The sole species is Leidesia procumbens.

The species is widespread in Southern Africa as far north as Democratic Republic of the Congo.

[1] The genus name of Leidesia is in honour of Carl Friedrich Seidel (d. 1898), a German painter and botanist, and/or Jacob Friedrich Seidel (1789–1860), a German gardener, and/or Johann Heinrich Seidel (1744–1815), a German court gardener.

This Euphorbiaceae-related article is a stub.