Nothoscordum is a genus of New World plants in the onion tribe within the Amaryllis family. It is probably paraphyletic. The genus is native to North and South America, though a few species have become naturalized in various parts of the Old World.
Berberis microphylla, common name box-leaved barberry and Magellan barberry, in Spanish calafate and michay and other names, is an evergreen shrub, with simple, shiny box-like leaves. The calafate is native to southern Argentina and Chile and is a symbol of Patagonia.
Bernardia is a plant genus of the family Euphorbiaceae first described for modern science as a genus in 1754. It is native to North and South America, as well as the West Indies.
Triuridaceae are a family of tropical and subtropical flowering plants, including nine genera with a total of ca 55 known species. All members lack chlorophyll and are mycoheterotrophic. The heterotrophic lifestyle of these plants has resulted in a loss of xylem vessels and stomata, and a reduction of leaves to scales.
Alnus acuminata is a species of deciduous tree in the Betulaceae family. It is found in montane forests from central Mexico to Argentina.
Bahia ambrosioides is a South American species of flowering plants in the sunflower family. It is native to Chile including the Juan Fernández Islands.
Lacandonia is a mycoheterotrophic plant that contains no chlorophyll and has the unusual characteristic of inverted positions of the male (androecium) and female (gynoecium) floral parts, something that had not been seen in any other plants with the occasional exception of some individuals of the related Triuris brevistylis.
Triuris is a genus in the family Triuridaceae. It consists of species that are small and achlorophyllous, occurring in tropical Mexico, Guatemala, and northern South America.
Cypella is a genus of herbaceous, perennial and bulbous plants in the family Iridaceae. It is distributed in South America, from Peru and Brazil to Northern Argentina. The genus name is likely derived from the Greek word kyphella, meaning "hollow of the ear", and alludes to the shape of the inner tepals.
Eustachys is a genus of tropical and subtropical plants in the grass family. It is native primarily to warmer parts of the Americas, with a few species in Africa and Asia.
Oplismenopsis is a genus of South American plants in the grass family. The only known species is Oplismenopsis najada, native to southern Brazil, Uruguay, and northeastern Argentina.
Neobouteloua is a genus of Argentine and Chilean plants in the grass family.
Rhynchoryza is a genus of plants in the grass family. The only known species is Rhynchoryza subulata, native to Brazil, Argentina, Paraguay and Uruguay.
Tweedia is a genus of flowering plants in the family Apocynaceae, first described as a genus in 1835. The genus is native to South America. An ornamental plant, Oxypetalum coeruleum, formerly included in this genus is commonly referred to as "tweedia".
- Tweedia andina(Phil.) G.H.Rua - Chile
- Tweedia aucaensisG.H. Rua - Argentina
- Tweedia australis(Malme) C. Ezcurra - Argentina
- Tweedia birostrata(Hook. & Arn.) Hook. & Arn. - Chile
- Tweedia brunonisHook. & Arn. - Argentina, Bolivia, Paraguay
- Tweedia echegarayi(Hieron.) Malme - Argentina
- Tweedia solanoides(Hook. & Arn.) Chittenden - Argentina, Brazil, Paraguay, Uruguay
Schickendantziella is a plant genus in the Amaryllidaceae. It has only one species, Schickendantziella trichosepala, native to Argentina and Bolivia.
Cyclopogon elatus is a species of terrestrial orchids. It is widespread across much of Latin America from Mexico to Argentina, as well as in the West Indies and southern Florida.
Diastatea is a genus of plants native to Latin America, mostly in Mexico and Central America but with one species extending southward along the Andes to Argentina.
- Diastatea costaricensisMcVaugh - Guatemala, Honduras, Nicaragua, Costa Rica
- Diastatea expansaMcVaugh - central Mexico
- Diastatea ghiesbreghtii(Kuntze) E.Wimm - southwestern Mexico
- Diastatea micrantha(Kunth) McVaugh - widespread from central Mexico to the Jujuy region of northern Argentina
- Diastatea tenera(A.Gray) McVaugh - southern Mexico and Guatemala
- Diastatea virgataScheidw. - southern Mexico
Peltastes is a genus of flowering plants in the family Apocynaceae, first described as a genus in 1932. It is native to Central and South America.
Chromolaena ivifolia called ivy-leaf false thoroughwort, or ivyleaf thoroughwort, is an American species of flowering shrub in the sunflower family. It is native to North America and South America, from the southeastern United States to Argentina. Within the United States, the species is found in eastern Texas, Louisiana, southern Mississippi, southern Alabama, and Florida.
Tagetes filifolia is a New World species of marigolds in the sunflower family. It is widespread across much of Latin America from northern Mexico to Argentina. Common name is Irish lace despite the fact that the plant does not grow in Ireland.
