| Egeria | |
|---|---|
 | |
| Egeria densa foliage | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Alismatales |
| Family: | Hydrocharitaceae |
| Subfamily: | Anacharioideae |
| Genus: | Egeria Planch. |
| Type species | |
| Egeria densa | |
| Species | |
See text | |
Egeria is a genus of three species of aquatic plants in the family Hydrocharitaceae described as a genus in 1849. [3] [2] native to warm-temperate South America. [4]
Egeria is found in many temperate and subtropical regions throughout the world as an introduced, or "alien", species, meaning a species that does not originate from the area in which it is found. In many places, particularly in Europe, fast-growing, adaptable plants such as Egeria can spread quickly and cause major damage to native plants and wildlife. [5]
The genus was formerly included in the related genus Elodea , from which it differs in having the leaves in whorls of four or more, not three, and in having more conspicuous flowers with larger (particularly broader) petals. [6] [7]
The genus includes the following species: [4]
Sapium is a genus of flowering plants in the family Euphorbiaceae. It is widespread across most of Latin America and the West Indies. Many Old World species were formerly included in the genus, but recent authors have redistributed all the Old World species into other genera.
Psidium is a genus of trees and shrubs in the family Myrtaceae. It is native to warmer parts of the Western Hemisphere.
Myrceugenia is a genus of evergreen woody flowering trees and shrubs belonging to the myrtle family, Myrtaceae, first described as a genus in 1855. The genus is native to South America from central Brazil to southern Chile. It is closely related to the genus Luma; some botanists include Myrceugenia in that genus.
Elodea is a genus of 6 species of aquatic plants often called the waterweeds described as a genus in 1803. Classified in the frog’s-bit family (Hydrocharitaceae), Elodea is native to the Americas and is also widely used as aquarium vegetation and laboratory demonstrations of cellular activities. It lives in fresh water. An older name for this genus is Anacharis, which serves as a common name in North America.
Mandevilla is a genus of tropical and subtropical flowering vines belonging to the family Apocynaceae. It was first described as a genus in 1840. A common name is rocktrumpet.
Caperonia is a genus of plants of the family Euphorbiaceae first described as a genus in 1825. The genus is native to tropical and subtropical America and Africa.
Ditaxis is a plant genus of the family Euphorbiaceae first described as a genus in 1824. Its name comes from Greek dis ("two") and taxis ("rank"), referring to the stamens which are in two whorls. The genus is widespread across much of the Western Hemisphere from the southern United States to Uruguay.
Acca is a genus of shrubs and small trees in the family Myrtaceae that is native to Bolivia and Peru.
Echinodorus, commonly known as burhead or Amazon sword, is a genus of plants in the family Alismataceae, native to the Western Hemisphere from the central United States to Argentina. Its scientific name is derived from Ancient Greek echius – "rough husk" - and doros – "leathern bottle" - alluding to ovaries, which in some species are armed with persistent styles, forming prickly head of fruit. Some of the species are commonly cultivated in artificial aquatic habitats.
Myrciaria is a genus of large shrubs and small trees described as a genus in 1856. It is native to Central and South America, Mexico, and the West Indies, with many of the species endemic to Brazil. Common names include hivapuru, sabará, and ybapuru.
Campomanesia is a genus in the family Myrtaceae described as a genus in 1794. It is native to South America and Trinidad.
Plinia is a genus of flowering plants in the myrtle family, Myrtaceae described by Linnaeus in 1753. It is native to Central and South America as well as the West Indies.
Egeria densa, the large-flowered waterweed or Brazilian waterweed, is a species of Egeria native to warm temperate South America in southeastern Brazil, Argentina, and Uruguay. It is considered a problematic invasive species due to its use in home aquariums and subsequent release into non-native habitats.
Citronella aka Andreea is a genus of trees and shrubs in the family Cardiopteridaceae described as a genus in 1832. It is native to tropical regions of South and Central America, insular Southeast Asia, Queensland, and islands of the western Pacific. The genus was formerly treated as belonging to the family Icacinaceae.
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.
Ottelia is a genus of an aquatic plant family Hydrocharitaceae described as a genus in 1805. The genus is native to tropical and subtropical regions of Africa, Asia, South America, and Australia.
Blyxa is a genus of an aquatic plant of the family Hydrocharitaceae described as a genus in 1806.
Hippeastrum cybister is a flowering perennial herbaceous bulbous plant, in the family Amaryllidaceae, native from Bolivia to Argentina.
Paxia is a genus of plants in the family Connaraceae, first described in 1891. It is native to west-central Africa.
Chascolytrum is a genus of plants in the grass family, native to Latin America from Mexico to Chile.
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