Berkheya spinosa, the bokbietou (goat bietou or antelope bietou), bokdissel (goat thistle) or perdebos (horse bush) in Afrikaans, is a thistle-like shrub of the Little Karoo, the Ceres Karoo and surrounds. It commonly grows in clayey soil of dry, rocky areas. It grows erect, branched stems to 1 m tall.
The leaves are smooth and leathery with spines along the margins at the lobe tips. The plant is palatable to livestock and game in spite of being spiny, but apparently not browsed in all parts of its distribution. Abundance of this species is an indicator of well managed veld (Vlok and Schutte-Vlok, 2010; Bond and Goldblatt, 1984; Shearing and Van Heerden, 1994).