Berberis swaseyi[4] (Texas barberry)[5] is a rare species of barberry endemic to the Edwards Plateau region of Texas.

It grows in limestone ridges and canyons.

The species is evergreen, with thick, rigid, five-to-nine foliolate leaves.

Berries are dry or juicy, white to red, about 9–16 mm in diam.

[6][7] The compound leaves place this species in the group sometimes segregated as the genus Mahonia.