water hyacinth

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Related to Eichhornia: Ceratophyllum

water hyacinth:

see pickerelweedpickerelweed,
common name for the Pontederiaceae, a family of chiefly tropical perennial aquatic herbs found in freshwater. The pickerelweeds (genus Pontederia) range north into temperate regions, including most of the E United States and Canada.
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Water Hyacinth


(Eichornia crassipes; formerly E. speciosa), a perennial herbaceous aquatic plant of the family Pontederiaceae. The stem is short, with rosettes of oval leaves. The leaf petioles are filled with air and inflated like bubbles to ensure that the plant floats on the water surface. The rhizomes are long, so that if the water dries out, the plant takes root in the muddy bottom. The flowers are in a spicate inflorescence with a funnelform lilac perianth of six lobes and six stamens. The fruit is a capsule.

The water hyacinth is native to tropical and subtropical regions of North and South America. It has spread to the fresh waters of all tropical lands. A pernicious aquatic weed, it forms dense thickets in rivers, obstructing navigation and contaminating drainage and irrigation systems. The water hyacinth is controlled by mechanical and chemical methods; in some countries it is used as fertilizer or livestock feed.

References in periodicals archive ?
Phytoremediation of zinc, cadmium, copper and chrome from industrial wastewater by Eichhornia crassipes.
Incoming floodwaters bring floating mats of waterhyacinth Eichhornia crassipes, but these do not proliferate.
Eichhornia crassipes, Jussieua repens, Pistia stratiotes, Ipomoea aquatica, and Cyperus rotundus) were used as nesting materials.
and phosphorus in the water by Eichhornia crassipes and Salvinia
Last, she added a free-floating water hyacinth Eichhornia crassipes).
The use of macrophytes such as Pistia and Eichhornia for phytoremediaion of wastewater polluted by organic and inorganic pollutants was investigated by Elumalai et al.
Adult weevil damage induced resistance in Eichhornia crassipes as measured by weevil performance, but simulated adult damage did not (Experiment 1).
Freshwater lagoons, highly limited because of restricted seasonal freshwater, occur at mouths of rivers with clumps of Phragmites australis and Typha domingensis at edges of streams, which often are choked by Eichhornia crassipes and Pistia stratiotes in deeper stagnant waters and irrigation channels.
2004), the species of this study, Echinodorus grandiflorus, Sagittaria montevidensis (Alismataceae), Eichhornia azurea, Pontederia cordata (Pontederiaceae), Oxycaryum cubense (Cyperaceae), Polygonum ferrugineum, P.
common aquatic weed Eichhornia crassipes has been used in China for the
Megamelus scutellaris Berg (Hemiptera: Delphacidae) is a South American species that feeds on waterhyacinth, Eichhornia crassipes Mart.