Steyermarkochloa is a genus of plants in the grass family. The only known species is Steyermarkochloa angustifolia(Spreng.) Judz., which is native to Colombia (Guainía), Venezuela (Amazonas), and Brazil (Amazonas).
Miersiella is a monotypic genus of flowering plants in the Burmanniaceae, first described as a genus in 1903. It contains only one known species, Miersiella umbellataUrb. It is native to South America.
Vailia is a monotypic genus of flowering plants belonging to the family Apocynaceae. It just contains one species, Vailia mucronataRusby
Schenckochloa is a monotypic genus of flowering plants belonging to the family Poaceae. It only contains one known species, Schenckochloa barbata(Hack.) J.J.Ortíz
Vanzijlia is a genus of flowering plants belonging to the family Aizoaceae. It only contains one known species, Vanzijlia annulata.
Xatardia is a monotypic genus of flowering plants belonging to the family Apiaceae. It only contains one known species, Xatardia scabra.
Volkensinia is a monotypic genus of flowering plants belonging to the family Amaranthaceae. It only contains one known species; Volkensinia prostrata. It is in the subfamily Amaranthoideae.
Goodallia is a monotypic genus of flowering plants belonging to the family Thymelaeaceae. It just contains one species, Goodallia guianensisBenth.
Ledebouriella is a monotypic genus of flowering plants belonging to the family Apiaceae. It only contains one known species, Ledebouriella multiflora(Ledeb.) H.Wolff.
Marcania is a monotypic genus of flowering plants belonging to the family Acanthaceae. It only contains one known species, Marcania grandifloraJ.B.Imlay
Neobrittonia is a monotypic genus of flowering plants belonging to the family Malvaceae. It only contains one known species, Neobrittonia acerifolia
Neoregnellia is a genus of flowering plants belonging to the family Malvaceae. It just contains one species, Neoregnellia cubensisUrb.
Pisoniella is a monotypic genus of flowering plants belonging to the family Nyctaginaceae. It only contains one known species, Pisoniella arborescens(Lag. & Rodr.) Standl.
Neobertiera is a genus of flowering plants belonging to the family Rubiaceae.
Oldfeltia is a genus of flowering plants belonging to the family Asteraceae. It contains only one known species, Oldfeltia polyphlebia.
Stewartiella is a monotypic genus of flowering plants belonging to the family Apiaceae. According to Kew; it only contains one known species, Stewartiella crucifolia(Gilli) Hedge & Lamond
Purdieanthus is a monotypic genus of flowering plants belonging to the family Gentianaceae. The only known species is Purdieanthus pulcher.
Nectouxia is a monotypic genus of flowering plants belonging to the family Solanaceae. The only species is Nectouxia formosa. It is in the Solanoideae subfamily and in Subtribe Salpichroinae, which is a subtribe of Physaleae.
Peterodendron is a monotypic genus of flowering plants belonging to the family Achariaceae. The only species is Peterodendron ovatum.
Perryodendron is a monotypic genus of flowering plants belonging to the family Rutaceae. The only known species is Perryodendron parviflorum.
