Frithia humilis is a species of plant in the family Aizoaceae.

It is one of the few members of Aizoaceae growing endemic to the summer-rainfall region of South Africa.

It is restricted to two provinces of South Africa: Gauteng and Mpumalanga.

This small plant consists of a cluster of long, succulent leaves that stick out just above the sandy gravel, with a thickened underground rootstock.

The leaves lose water and contract during drought, hiding underground and so preventing more water loss.