The Cyperaceae are a family of graminoid (grass-like), monocotyledonous flowering plants known as sedges. The family is large, with some 5,500 known species described in about 90 genera, the largest being the "true sedges" genus Carex with over 2,000 species.
Psidium is a genus of trees and shrubs in the family Myrtaceae. It is native to warmer parts of the Western Hemisphere.
The genus Heliamphora contains 23 species of pitcher plants endemic to South America. The species are collectively known as sun pitchers, based on the mistaken notion that the heli of Heliamphora is from the Greek helios, meaning "sun". In fact, the name derives from helos, meaning marsh, so a more accurate translation of their scientific name would be marsh pitcher plants. Species in the genus Heliamphora are carnivorous plants that consist of a modified leaf form that is fused into a tubular shape. They have evolved mechanisms to attract, trap, and kill insects; and control the amount of water in the pitcher. At least one species produces its own proteolytic enzymes that allows it to digest its prey without the help of symbiotic bacteria.
Rhynchospora is a genus of about 400 species of sedges with a cosmopolitan distribution. The genus includes both annual and perennial species, mostly with erect 3-sided stems and 3-ranked leaves. The achenes bear a beak-like tubercule and are sometimes subtended by bristles. Many of the species are similar in vegetative appearance, and mature fruits are needed to make a positive identification.
Heliamphora neblinae is a species of marsh pitcher plant endemic to Cerro de la Neblina, Cerro Aracamuni and Cerro Avispa in Venezuela. It is one of the most variable species in the genus and was once considered to be a variety of H. tatei. It is unclear whether or not there is a consensus regarding its status as a species, with at least a few researchers supporting the taxonomic revision that would elevate both H. tatei var. neblinae and H. tatei f. macdonaldae to full species status.
Hypolytrum is a genus of plant in the family Cyperaceae. It contains approximately 60–70 species, native to tropical Africa, Asia, Australia, Latin America and various oceanic islands.
Halodule is a genus of plants in the family Cymodoceaceae described as a genus in 1841. It is widespread on tropical and semi-tropical ocean shores of all continents except Europe and Antarctica.
Echinodorus grandiflorus is a plant species in the Alismataceae. It is native to Brazil, Paraguay, Uruguay, Argentina, Venezuela and Florida.
Bulbostylis capillaris is a species of sedge known by the common names densetuft hairsedge and threadleaf beakseed. It is native to much of North America, South America and the West Indies from Canada to Bolivia.
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).
Rhytachne is a genus of plants in the grass family. They grow principally in wet savannahs in Africa and the Americas. More specifically, they tend to prefer transitional zones between marshes and drier upland savannahs. In the Americas the genus can be found from southern Mexico and Cuba south to northern Argentina, while in Africa it is present in Sub-Saharan Africa, including in Madagascar. Twelve species are included, of which nine are African, two are American, and one, Rhytachne subgibbosa, is found on both continents. The genus is closely related to Coelorachis.
Cerro de la Neblina, also known as Serra da Neblina in Brazil and Sierra de la Neblina in Venezuela, is a sandstone massif located in the northern Amazon Basin. It is a tilted, heavily eroded plateau, with a deep canyon in its central portion, drained by the Baria River.
Tinantia is a genus of plants in the Commelinaceae, first described in 1839. They are commonly called widow's tears or false dayflowers due to their resemblance of the closely related true dayflowers of the genus Commelina. Tinantia is native to North and South America from Texas + Hispaniola to Argentina, with a center of diversity from Mexico to Nicaragua. Tinantia pringlei, an alpine native of Mexico, is grown as an ornamental in temperate areas and is also a common greenhouse weed.
Weldenia is a monotypic genus of flowering plants in the family Commelinaceae, first formally described in 1829. It has one single species: Weldenia candida, which grows natively in Mexico and Guatemala.
Achlyphila is a genus of plants in the Xyridaceae, first described as a genus in 1960. It contains only one known species, Achlyphila disticha, endemic to the Serranía de la Neblina National Park in the State of Amazonas in southern Venezuela, very close to the border with Brazil.
Dictyostega is a genus of flowering plants in the Burmanniaceae, first described as a genus in 1840. It contains only one known species, Dictyostega orobanchoides, native to southern Mexico, Central America, Trinidad, and South America ).
Stegolepis is a group of plants in the family Rapateaceae described as a genus in 1872.
Bassett Maguire was an American botanist, head curator of the New York Botanical Garden, and a leader of scientific expeditions to the Guyana Highlands in Brazil and Venezuela.
Lennoa is a monotypic genus of flowering plants belonging to the family Boraginaceae. It only contains one known species, Lennoa madreporoidesLex. It is within the subfamily of Lennoaceae.
Maguireocharis is a monotypic genus of flowering plants belonging to the family Rubiaceae. It only contains one known species, Maguireocharis neblinaeSteyerm.
