[1] Tristan da Cunha is in the South Atlantic Ocean, 2,780 km west of the Cape Town on the African mainland.

Tristan da Cunha is the youngest and highest island in the ecoregion, with an area of 41 km2.

Gough Island has a central plateau with several peaks, with cliffs 300 to 450 metres high along the shoreline, with narrow rocky beaches and no natural harbor.

The islets are mostly within 100 metres of the shore, and the largest support seabird breeding colonies and some vascular plants.

Tussock grassland of Sporobolus mobberleyanus and Poa flabellata predominates in coastal areas with regular salt spray.

Introduced grazing animals have largely eliminated Tristan's tussock grasslands, except along the eastern shore and in inaccessible areas.

It includes B. palmiforme and other ferns, the shrub Empetrum rubrum, sedges, grasses, herbs, and mosses.

Sphagnum moss predominates, with the reedlike Tetroncium magellanicum and sedges (Scirpus spp.).

[1] Feldmark and montane rock communities are found in rocky and exposed areas above 600 metres elevation, composed of low cushion-forming and crevice plants.

[1] Other species include the Atlantic petrel (Pterodroma incerta), spectacled petrel (Procellaria conspicillata), Tristan albatross (Diomedea dabbenena), sooty albatross (Phoebetria fusca), and northern rockhopper penguin (Eudyptes moseleyi).

[1] Gough and Inaccessible Islands are managed as a wildlife reserve (IUCN category I), and were designated a UNESCO World Heritage Site in 1995.