Thesium lacinulatum is a species of plant from South Africa and Namibia.

Thesium lacinulatum is a bush that grows to be about 30 cm (1 ft) tall.

[2] The axillary flowers have small scaly bracts with tapering tips.

The anthers extend past the conical perianth tube.

[2] This plant grows in dry shrubland areas of South Africa and Namibia.