Flora of Tristan da Cunha

Deschampsia wacei is a species of grass in the family Poaceae. It is found in Tristan da Cunha in the South Atlantic. Its natural habitat is swamps.

Carex thouarsii is a species of sedge found in the Tristan da Cunha archipelago. It lives chiefly in heaths dominated by Blechnum palmiforme, and Phylica arborea woodland. It is widespread and common on Tristan da Cunha and Inaccessible Island, but scarce on Nightingale Island, possibly due to a lack of habitat. It was first described by Dugald Carmichael in 1819 following the British annexation of Tristan da Cunha in 1816.

Callitriche christensenii is a species of plant in the family Plantaginaceae. It is a hydrosubshrub endemic to Tristan da Cunha. Its natural habitats are rivers, freshwater marshes, and freshwater springs.

Atriplex plebeja is a species of plant in the family Amaranthaceae. It is endemic to Tristan da Cunha, including Inaccessible and Nightingale Islands. Its natural habitat is rocky shores. It is threatened by habitat loss.

Rostkovia tristanensis is a species of flowering plant in the family Juncaceae, the rushes. It is endemic to Tristan da Cunha, where it occurs only on the main island and Gough Island. It grows in heath habitat with Empetrum. It is not uncommon on Gough Island, but it is rarely seen in flower.

Agrostis trachychlaena is a species of grass in the family Poaceae. It is endemic to Inaccessible and Nightingale Islands, Tristan da Cunha. Its natural habitat is subantarctic grassland. Less than 250 mature individuals are thought to exist.

Isolepis bicolor is a species of plant in the sedge family, Cyperaceae. The plant is endemic to Tristan da Cunha, Nightingale Island, Inaccessible Island and Gough Island. Its natural habitats are subantarctic forests, subantarctic shrubland, and swamps.

Deschampsia robusta is a species of grass in the family Poaceae. It is found on Gough Island, near Tristan da Cunha in the South Atlantic Ocean.

Asplenium aequibasis is a species of fern in the family Aspleniaceae. It is found in Tristan da Cunha. Its natural habitat is subantarctic shrubland.

Agrostis media is a species of grass in the family Poaceae. It is found only in Tristan da Cunha. Its natural habitats are subantarctic shrubland, subantarctic grassland, rocky areas, and rocky shores.

Agrostis goughensis is a species of grass in the family Poaceae. It is found on Gough Island.

Athyrium medium is a species of fern in the family Athyriaceae. It is found in Tristan da Cunha. Its natural habitat is subantarctic shrubland.

Cotula moseleyi, also known as Nightingale brassbuttons, is a species of flowering plant in the sunflower family. It has been found only in the Tristan da Cunha chain of islands in the South Atlantic Ocean. Its natural habitats are subantarctic forests, subantarctic grassland, rocky shores, and hillsides. It is threatened by habitat loss.

Phylica arborea, also known as the Island Cape myrtle, is a shrub or small tree with narrow needle-like dark green leaves, downy silver on the underside, and with greenish white terminal flowers. Usually a shrub or procumbent tree, it may reach 6–7 m in height in sheltered locations. It is found on various isolated islands, including the Tristan da Cunha group and Gough Island, in the South Atlantic Ocean, as well as Amsterdam Island in the southern Indian Ocean.

Poa flabellata, commonly known as tussac grass or just tussac, is a tussock grass native to Patagonia, the Falkland Islands, South Georgia and other islands in the South Atlantic. There are also two isolated records from the herbarium at the French Muséum national d'histoire naturelle for the Île Amsterdam in the Indian Ocean. It was introduced to Shetland, Scotland for basket making in 1844, and possibly as a source of fodder because of its ability to grow in hostile conditions.. It grows in dense clumps, usually about 2 metres (6 ft 7 in) high (although they can be much taller), on wet

Pelargonium grossularioides is a species of geranium known by the common names gooseberry geranium and coconut geranium. It grows primarily in the subtropical biome and is native to Cape Provinces, Free State (province), KwaZulu-Natal, Mozambique, and Tristan da Cunha. It is known in coastal California, Kenya, and parts of India as an introduced species. It is sometimes grown as a garden geranium. Its common names come from the resemblance of the leaves to those of gooseberry and from the coconut scent of the leaves. An annual or occasionally perennial, it has sparse, short hairs and a

Tetroncium is a genus of plants in the Juncaginaceae described as a genus in 1808. It contains only one known species, Tetroncium magellanicum, known from a few sub-Antarctic islands: Tierra Del Fuego (Chile and Argentina), Falkland Islands, and Gough Island. The plant got the name magellanicum because the original description was describing the sample found near the Strait of Magellan.

Empetrum rubrum, known as red crowberry or diddle-dee (Chilean Spanish: Murtilla de Magallanes), is a species of plant in the heath family, Ericaceae.

The morning glory Calystegia tuguriorum is a species of bindweed known as New Zealand bindweed, pōuwhiwhi, and pōwhiwhi. It is a perennial vine which grows in coastal and lowland areas throughout New Zealand, as well as being present in Chile and on the Juan Fernández Islands.

Asplenium obtusatum, the shore spleenwort or paranako, is a species of spleenwort found in New Zealand and other Pacific isles.

Apium australe is a species of the genus Apium of the family Apiaceae. It is a perennial herb with a distribution in salt-marsh and saline habitats of Southern South America.

Carex austrocompacta, commonly known as compact hook sedge, is a sedge that is found in south eastern parts of Australia and on many sub-antarctic islands, including Crozet Island and Kerguelen Island.

Isolepis prolifera is a species of flowering plant in the family Cyperaceae that grows in temperate regions of the Southern Hemisphere. It has leafless stems up to 90 cm (35 in) tall, and clusters of flowers that often proliferate into branches.

Rumex cuneifolius is a flowering plant species in the family Polygonaceae.

Polypogon magellanicus (Syn. Agrostis magellanica) is a species of grass. It has a circumpolar distribution and is native to many subantarctic islands in, and the coasts bordering, the Southern Ocean.

Phylica is a genus of plants in the family Rhamnaceae. It contains about 150 species, the majority of which are restricted to South Africa, where they form part of the fynbos. A few species occur in other parts of southern Africa, and on islands including Madagascar, the Mascarene Islands, Île Amsterdam, Saint Helena, Tristan da Cunha, and Gough Island. Phylica piloburmensis from the Burmese amber of Myanmar, dating to around 99 million years ago during the mid-Cretaceous, was originally described as the oldest fossil member of the genus, but subsequent studies contested its assignment to the

Jamesonia is a genus of ferns in the subfamily Pteridoideae of the family Pteridaceae. It now includes the formerly separate genus Eriosorus.

Austroblechnum penna-marina, synonym Blechnum penna-marina, known as Antarctic hard-fern, Little Hard Fern, Alpine Hard Fern, alpine water fern and pinque (Chilean Spanish), is a species of fern in the family Blechnaceae. It is a widely distributed fern species in the southern hemisphere, with a natural range including New Zealand, Australia, and South America. It has wiry rhizomes and exhibits strong dimorphism in its fronds. The sterile fronds are prostrate or semi-erect, growing up to 400 mm in length, while the fertile fronds are longer and held erect. The sterile fronds have a

Hymenophyllum tunbrigense, the Tunbridge filmy fern or Tunbridge filmy-fern, is a small, fragile perennial leptosporangiate fern which forms large dense colonies of overlapping leaves from creeping rhizomes. The common name derives from the leaves which are very thin, only a single cell thick, and translucent, giving the appearance of a wet film. The evergreen fronds are bipinnatifid, deeply and irregularly dissected, about 3 to 6 cm long, 2 cm across with dark winged stipes. In contrast to the similar H. wilsonii the fronds are more divided, flattened, appressed to the substrate and tend to

Lagenophora is a genus of flowering plants in the family Asteraceae. Species occur in Southeast Asia, Australia, New Zealand, as well as Central and South America.