Flora of Argentinian South

Olsynium biflorum is a species of plant from the family Iridaceae. It is native to Argentina and Chile (Magallanes Region).

Macrachaenium is a genus of flowering plants in the family Asteraceae. Species There is only one known species, Macrachaenium gracile, native to Chile (Biobío, La Araucania, Aisén, Los Lagos, Magallanes) and Argentina (Chubut, Neuquén, Rio Negro, Santa Cruz, Tierra del Fuego).

Chilocardamum is a small genus of four herbaceous cress-like species of plants in the family Brassicaceae, only found growing in Patagonia, southern Argentina.

Trichotolinum is a genus of flowering plants belonging to the family Brassicaceae. It includes a single species, Trichotolinum deserticola, a perennial endemic to southern Argentina.

Pantacantha is a monotypic genus of flowering plants belonging to the family Solanaceae. The only species is Pantacantha ameghinoi. It is a shrub native to southern Argentina.

Nicotania acaulis is a Nicotiana species of wild tobacco. It is native to Argentina and Chile.

Nardophyllum deserticola is a species of flowering plant in the family Asteraceae, native to Argentina. It was first described in 1953 as Aylacophora deserticola.

Delpinophytum is a monotypic genus of flowering plants belonging to the family Brassicaceae, with one species, Delpinophytum patagonicum, a subshrub native to southern Argentina. The species was first described as Delpinoella patagonica by Carlo Luigi Spegazzini in 1902. The genus was named after Italian botanist Federico Delpino (1833–1905), then published and described in Anales Mus. Nac. Buenos Aires Vol.9 on page 9 in 1903.

Burkartia is a monotypic genus of flowering plants in the family Asteraceae, containing the single species Burkartia lanigera. It is endemic to southern Argentina (Provinces of Chubut, Rio Negro, Santa Cruz). This species was formerly in genus Perezia, but it was separated because it has woolly trichomes in the leaf axils, a character not seen in any other Perezia. The genus Burkartia was erected for it in 1976. Molecular phylogenetic analyses in 2009 supported its separation from Perezia.

Austrocactus coxii is a plant species in the genus Austrocactus from the cactus family (Cactaceae), indigenous to southern Argentina and southern Chile. It grows as short columnar stems up to 5 cm diameter, reaching 60 cm in height, with 6-10 tuberculate ribs. Central spines are hard, straight or slightly hooked, light brown to whitish and up to 4 cm long. Thin spines are interwoven and range from 6 to 10 in number; each is up to 1 cm long. Its diurnal red flowers are up to 3.5 cm in diameter.

Adesmia aphanantha is a perennial herb found in South America.

Adesmia ameghinoi is an endemic perennial shrub found in Argentina.

Adesmia adrianii is an endemic perennial shrub found in Argentina.

Abrotanella diemii is a member of the daisy family and is an endemic species of southern Argentina, (Neuquén).

Nardophyllum patagonicum is a species of flowering plant in the family Asteraceae, native to south Argentina. It was first described in 1969 as Paleaepappus patagonicus.

Melica patagonica is a species of grass that is endemic to South America.

Delpinophytum is a monotypic genus of flowering plants belonging to the family Brassicaceae, with one species, Delpinophytum patagonicum, a subshrub native to southern Argentina. The species was first described as Delpinoella patagonica by Carlo Luigi Spegazzini in 1902. The genus was named after Italian botanist Federico Delpino (1833–1905), then published and described in Anales Mus. Nac. Buenos Aires Vol.9 on page 9 in 1903.

Trichotolinum is a genus of flowering plants belonging to the family Brassicaceae. It includes a single species, Trichotolinum deserticola, a perennial endemic to southern Argentina.

Pterocactus valentini is a species of flowering plant in the family Cactaceae, native to southern Argentina. Their fruit are samaras.

Fitzroya is a monotypic genus in the cypress family. The single living species, Fitzroya cupressoides, is a tall, long-lived conifer native to the Andes mountains and coastal regions of southern Chile, and to the Argentine Andes, where it is an important member of the Valdivian temperate forests. Common names include lawal (in Mapudungun, Hispanicized as lahual), alerce ([aˈleɾse], "larch" in Spanish), and Patagonian cypress. The genus was named in honour of Robert FitzRoy. The genus is ancient with it dating back to the Cretaceous of South America. Fossils are also known from the Paleogene

Pilgerodendron is a genus of conifer belonging to the cypress family Cupressaceae. It has only one species, Pilgerodendron uviferum, which is endemic to the Valdivian temperate rain forests and Magellanic subpolar forests of southern Chile and southwestern Argentina. It grows from 40 to 54°20' S in Tierra del Fuego, where it is the southernmost conifer in the world. It is a member of subfamily Callitroideae, a group of distinct Southern Hemisphere genera associated with the Antarctic flora. Pilgerodendron is very closely related to the New Zealand and New Caledonian genus Libocedrus, and many

Philesia is a South American genus of flowering plants in the monocot family Philesiaceae first described as a genus in 1789. The native name is Coicopihue. There is only one known species in this genus, Philesia magellanica, which is native to southern Chile (from Los Ríos to Magallanes regions) and southern Argentina. This species is, unusually for a monocot, a suckering shrub, growing to 1.2 metres (3 ft 11 in) tall and spreading by stolons. The leaves are linear, 15–35 mm long and 3–8 mm broad, glossy green above, and with two white stomatal bands below. The flowers have six tepals, the

Nothofagus betuloides, Magellan's beech or guindo, is a tree native to southern Patagonia. In 1769, Sir Joseph Banks collected a specimen of the tree in Tierra del Fuego during Captain Cook's first voyage. Its occurrence on Hornos Island earns it the distinction of being the southernmost tree on Earth.

Calceolaria uniflora (syn. Calceolaria darwinii, known as Darwin's slipper) is a perennial plant of the genus Calceolaria, known as the slipperworts. It is originally from Tierra del Fuego in the southern part of South America. Calceolaria uniflora is a mountain plant growing only to 10 cm (4 in) tall. The flowers are a compound of yellow, white and brownish red. Calceolaria uniflora is an ornithophilic plant and is pollinated by the least seedsnipe. The seedsnipe eats the conspicuous white floral appendage on the lower lip of the flower, which is high in sugars. While the seedsnipe pecks at

Podocarpus nubigenus (also known as P. nubigena) is a species of podocarp, endemic to the Valdivian temperate forests of southern Chile and adjacent southwestern Argentina. It is the southernmost podocarp in the world. It grows from 38°S to Ultima Esperanza (53°S), in wet and swampy soils. It can settle clear grounds, with a faster growth than the other Chilean Podocarpaceae. It is a medium to large tree, growing to around 20–25 metres (66–82 feet), exceptionally to 35 m (115 ft). The bark peels off in papery flakes, with a purplish to golden brown hue. The sharp, green, needle-like leaves

Ortachne is a genus of Latin American plants in the grass family. Species Ortachne breviseta Hitchc. - Chile, Argentina Ortachne rariflora (Hook.f.) Hughes - Chile, Argentina formerly included see Aristida Ortachne floridana - Aristida floridana Ortachne pilosa - Aristida jorullensis Ortachne scabra - Aristida ternipes Ortachne tenuis - Aristida ternipes Ortachne erectifolia (Swallen) Clayton - Lorenzochloa erectifolia

Berberis ilicifolia, sometimes called holly barberry or holly-leaved barberry is a medium to high, spiny shrub belonging to the barberries in the family Berberidaceae. The local name in Chile is Chelia. It has ovate leaves with a few teeth that end in spines, reminiscent of holly leaves. Its orange flowers grow with three to seven together, which later produce globose blue-black berries. The species is native to south of 40ºS in Argentina and Chile, where it grows in Nothofagus woods. Flowers are present from August to December, while ripe berries are available between November and March.

Maihuenia poeppigii, commonly known in Chile as maihuén or hierba del guanaco, is a succulent cactus shrub from Argentina of a type called a cushion plant. The flowers and fruit are yellow. M. poeppigii is remarkably tolerant to moisture and cold temperatures. The specific epithet poepigii commemorates Eduard Pöppig, a 19th-century German naturalist who explored South America.

Benthamiella is a genus of plants in the family Solanaceae, native to Patagonia in southern South America. Its species have been described as "attractive, small, cushion plants".

Lepidothamnus fonkii (Spanish: ciprés enano) is a species of conifer in the family Podocarpaceae. It is found in Argentina and Chile. It is threatened by habitat loss.