Tradescantia is a genus of 85 species of herbaceous perennial wildflowers in the family Commelinaceae, native to the Americas from southern Canada to northern Argentina, including the West Indies. Members of the genus are known by many common names, including inchplant, wandering jew, spiderwort, dayflower and trad.
Oncidium, abbreviated as Onc. in the horticultural trade, is a genus that, as of December 2023, contains about 340 species of orchids from the subtribe Oncidiinae of the orchid family Orchidaceae. It is distributed across tropical and subtropical America from Mexico, Central America and the West Indies to northern Argentina, with one species (O. ensatum) extending into Florida. Common names for plants in this genus include dancing-lady orchid and golden shower orchid.
Caryodendron is a plant genus of the family Euphorbiaceae first described as a genus in 1860. The genus includes C. orinocense, known as the Inchi tree or Tacay nut. It is native to Central America and South America. They are dioecious trees.
- Caryodendron amazonicumDucke - Amazonas in Brazil
- Caryodendron angustifoliumStandl. - Costa Rica, Panama, Colombia
- Caryodendron janeirenseMüll.Arg. - Rio de Janeiro
- Caryodendron orinocenseH.Karst - Colombia, Venezuela, Ecuador
Angostylis is a genus of flowering plants in the family Euphorbiaceae, first described in 1854. The genus is native to northern South America.
Glycydendron is a genus of plants, under the family Euphorbiaceae first described as a genus in 1922. It is native to South America.
- Glycydendron amazonicumDucke - French Guinea, Suriname, Guyana, Ecuador, Peru, Bolivia, northwestern Brazil, possibly Colombia
- Glycydendron espiritosantenseKuhlm, - State of Espirito Santo in Brazil
Micrandropsis is a plant genus of the family Euphorbiaceae first described as a genus in 1973. It contains only one known species, Micrandropsis scleroxylon, endemic to the State of Amazonas in northwestern Brazil.
Actinostemon is a plant genus of the family Euphorbiaceae first described as a genus in 1841. It is native to South America, Central America, and the West Indies.
Algernonia is a plant genus of the family Euphorbiaceae first described as a genus in 1858. It is native to Peru and Brazil.
Syngonanthus chrysanthus is a species in the family Eriocaulaceae, native to southeastern Brazil. One cultivar of this species is Syngonanthus chrysanthus 'Mikado', which is also simply called 'Mikado'. It has a rosette-forming base of velvety leaves and long stems which display initially golden enclosed buds, forming creamy-white button flowers. This plant prefers an indoor setting with humid conditions and high light.
Dipteryx charapilla is a little-known species of flowering plant in the family Fabaceae, a large to mid-sized tree growing along rivers in the rainforests of Brazil. and Peru.
Syagrus macrocarpa is a rare species of palm found only as scattered isolated individuals and small groups in the east of the Brazilian states of Espírito Santo, Minas Gerais and Rio de Janeiro. It grows to 4-10m tall, with 8-20 leaves to 2m long. The leaves are bent at the end, with very hairy margins near the trunk, and consist of 180-320 slightly coiled leaflets irregularly arranged in several planes on the rake. The fruit are oval, greenish-yellow, 6–9 cm long. It is grown in cultivation. Seeds are difficult to germinate, with low rates of germination. Common names for it in Minas Gerais are baba-de-boi-grande and maria-rosa.
Blepharocalyx is a genus of plant in family Myrtaceae first described as a genus in 1854. It is native to South America and the West Indies.
- Blepharocalyx cruckshanksii(Hook. & Arn.) Nied. - Chile
- Blepharocalyx eggersii(Kiaerskou) L.R.Landrum - Lesser Antilles, Venezuela, Guyana, Peru, Brazil
- Blepharocalyx myriophyllus Mattos - Minas Gerais
- Blepharocalyx salicifolius(Kunth.) O.Berg - Brazil, Bolivia, Peru, Ecuador, Paraguay, Uruguay, N Argentina
Asterostigma is a genus of flowering plants in the family Araceae. It is native to Brazil and Argentina. The leaves are pinnate and the plant is tuberous.
- Asterostigma cryptostylumBogner - Brasília, Goiás, Minas Gerais
- Asterostigma cubense(A.Rich.) K.Krause ex Bogner - São Paulo
- Asterostigma lividum(G.Lodd.) Engl. - southern Brazil; Misiones Province of Argentina
- Asterostigma lombardiiE.G.Gonç. - Minas Gerais, Espírito Santo
- Asterostigma luschnathianumSchott - southern Brazil
- Asterostigma reticulatumE.G.Gonç - southern Brazil
- Asterostigma riedelianum(Schott) Kuntze - eastern Brazil
- Asterostigma tweedieanumSchott - Santa Catarina in southern Brazil
Urospatha is a genus of flowering plants in the family Araceae that consists of 11 known species. They are found growing in South America and Central America in swamps, wet savannahs, and brackish water. The leaves of the species in this genus are upward pointing and sagittate (arrow-shaped). The inflorescences are quite unique; the spathe is mottled and elongated with a spiral twist at the end. The seeds are distributed by water and have a texture similar to cork that allows them to float. They also quickly germinate in water.
Dracontioides is a genus of flowering plants in the family Araceae. It was long thought to contain only a single species until a second species was described in 2005. Both are endemic to Brazil.
Mangonia is a genus of flowering plants in the family Araceae. The genus contains only two known species native to southern Brazil and Uruguay.
- Mangonia tweedieanaSchott. - Rio Grande do Sul, Uruguay
- Mangonia uruguaya(Hicken) Bogner - Cerro Largo in Uruguay
Amasonia is a genus of plants in the family Lamiaceae, native to South America and to the island of Trinidad.
Hoehnea is a genus of plants in the family Lamiaceae, first described with this name in 1939. It is native to South America, primarily southern Brazil and Paraguay.
Vitex megapotamica is a hardwood fruit tree found in Argentina, Paraguay, Uruguay, and southern Brazil. In Brazil it is commonly called tarumã.
Butia stolonifera was an oddly growing palm assigned to the genus Butia found only once in Uruguay in the 19th century, but which now is considered to be uncertain as a valid species.
