Argyroderma testiculare (Afrikaans: bokklootjies) is a species of succulents endemic to the quartz gravel of the Knersvlakte region.

[1] It is a small plant that does not grow larger than 15 cm.

The leaves are thick and look like an egg which has been chopped in half.

[2] Argyroderma testiculare has an EOO of 68 km2, thus giving it the classification of Rare.

There are no severe threats to the species as most of its habitat is protected.