Tetraria thermalis (L.) C.B.Clarke, the bergpalmiet, is a South African perennial in the family Cyperaceae.

[2][3][4] This is a pioneer plant which recovers rapidly after fire, aiding the regrowth of other species.

It reaches some 2,5 m in height, is trigonous with wiry, drooping yellow-green leaves that are narrowly sword-shaped and keeled.

[5] The flowering stems are erect and triangular in cross-section, standing well above the leaves.

Nutlets are small and trigonous, often crowned by a persistent style, and are consumed by the Chacma baboon.