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Water hyacinth is a free-floating perennial aquatic plant (or hydrophyte) native to tropical and subtropical South America. With broad, thick, glossy, ovate leaves, water hyacinth may rise above the surface of the water as much as 1 m (3 ft) in height. The leaves are 10–20 cm (4–8 inches) across on a stem, which is floating by means of ...
The mottled water hyacinth weevil, Neochetina eichhorniae, is a beetle that has been introduced as a biological pest control herbivore agent to waterways and lakes in countries worldwide to control the spread of the invasive noxious weed species Eichhornia crassipes, the water hyacinth, an aquatic plant native to the Amazon basin.
Eichhornia. Eichhornia, commonly called water hyacinths, was a polyphyletic genus of the aquatic flowering plants family Pontederiaceae. Since it was consistently recovered in three independent lineages, it has been sunk into Pontederia, together with Monochoria. Each of the three lineages is currently recognized as subgenera in Pontederia:
P. azurea. Binomial name. Pontederia azurea. Sw. Pontederia azurea is a water hyacinth from the Americas, sometimes known as anchored water hyacinth. It is the type species of Pontederia subg. Eichhornia, which was previously recognized as part of the polyphyletic genus Eichhornia. [1] It is of some interest as an aquarium plant.
Water hyacinths increased rapidly between 1992 and 1998, were greatly reduced by 2001, and have since resurged to a lesser degree. Management techniques include (hyacinth-eating) insect controls and manual beach cleanup efforts. [5] A water hyacinth infestation is seldom totally eradicated. Instead, it is a situation that must be continually ...
Megamelus scutellaris, the water hyacinth planthopper, is a true bug native to South America. It is used as a biological control agent to manage and reduce the spread of the water hyacinth (Pontederia crassipes, formerly Eichhornia crassipes), an invasive aquatic plant native to South America that has invaded many freshwater systems globally.
See text. Hyacinthus / ˌhaɪəˈsɪnθəs / [1] is a small genus of bulbous herbs, spring-blooming perennials. [2][3] They are fragrant flowering plants in the family Asparagaceae, subfamily Scilloideae [4] and are commonly called hyacinths (/ ˈhaɪəsɪnθs /). The genus is native predominantly to the Eastern Mediterranean region from the ...
Pontederia vaginata Royle. Monochoria vaginalis is a species of flowering plant in the water hyacinth family known by several common names, including heartshape false pickerelweed and oval-leafed pondweed. It is native to much of Asia and across many of the Pacific Islands, and it is known in other areas as an introduced species.