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Elodea foliage detail Kingdom: Clade: Clade: Order: Family: Subfamily: Genus: Elodea 1803 not J. 1805 () nor Rich. • Anacharis illegitimate name • Serpicula Pursh 1816, illegitimate homonym not L. 1767 (syn of in ) nor L.f. 1782 (syn of in ) • Philotria Raf. • Udora Nutt. • Diplandra Bertero • Hydora Besser • Apalanthe Planch.

Elodea is a of 6 species of often called the waterweeds described as a genus in 1803. Elodea is native to and and is also widely used as vegetation. It lives in fresh water.

The introduction of some species of Elodea into waterways in parts of, Australia,,, and New Zealand has created a significant problem and it is now considered a noxious in these areas. An older name for this genus is Anacharis, which serves as a common name in North America., sometimes called American or Canadian water weed or pond weed, is widely known as the generic water weed. The use of these names causes it to be confused with similar-looking plants, like Brazilian elodea ( ) or hydrilla ( ). American water weed is an attractive aquarium plant and is a good substitute for Brazilian elodea. It can be used for science experiments in classrooms demonstrating how plants use carbon dioxide with the usage of. The American water weed lives entirely underwater with the exception of small white which bloom at the surface and are attached to the plant by delicate stalks.

It produces winter buds from the stem tips that overwinter on the lake bottom. It also often overwinters as an plant in mild climates. In the fall, leafy stalks will detach from the parent plant, float away, root, and start new plants. This is the American water weed's most important method of spreading, while seed production plays a relatively minor role. Silty and water rich in nutrients favor the growth of American water weed in nutrient-rich lakes.

However, the plants will grow in a wide range of conditions, from very shallow to deep water, and in many sediment types. It can even continue to grow unrooted, as floating fragments. Okeani Jelena Tomasevic Download. It is found throughout temperate North America, where it is one of the most common aquatic plants. American water weed is an important part of lake. It provides good habitat for many aquatic and cover for young and. Waterfowl, especially, as well as, and aquatic eat this plant. It is also of economic importance as an attractive and easy to keep aquarium plant, although in the states of Alabama, New Hampshire, New York, South Carolina, and Washington it has been deemed an invasive species and is illegal to sell.

Species • H.St.John - Canada (, ), W United States ( + to + ) • (Rich.) Casp. - most of United States + Canada • Humb. - much of • (Planch.) H.St.John - much of United States + Canada • (Bertero) Espinosa -,,, Chemical control [ ] Chemical methods are ineffective in eradicating Elodea – at best they only slow growth for a season or two.

As Elodea spreads into new ecosystems, it experiences rapid growth for 5–6 years and then slows as soil nutrients are used up. Elodea is now threatening all of Europe, a wait and see approach has been deemed the best method of control. Chemicals may be used in places that cause undue economic concerns, but very few aquatic herbicides are registered for aquatic use in the EU., the most commonly used aquatic herbicide is highly effective against Hydrilla, but only marginally effective against Elodea, especially at lower use rates. References [ ].