Hydrilla is an aquatic freshwater flora. This flora grows to the surface of the water from a depth as great as 20 feet. Hydrillas are a standard aquatic flora and can grow in a variety of different water sorts. This water plant can prosper in water that is very shallow or up to 20 feet deep. The Hydrilla can flourish in either oligotrophic (low nutrient) or eutrophic (high nutrient) water conditions.  
 
The tolerance temperature level of a Hydrilla is 20o C to 27o C; so, it can’t stand harsh climates. This fresh water plant, Hydrilla, branches copiously and when it reaches the surface, it opens its branches and forms dense mats. It might have stems as long as twenty five feet submerged in water! Rhizomes, another name for the roots, are off-white to yellow in color. off-white or yellow in color. | The roots or Rhizomes of the Hydrilla are oftentimes yellowish or off-white in color. } The Hydrilla has numerous choices when it comes time to reproduce. Fragmentation, seeds, tubers and turions (auxiliary buds) are the primary ways the Hydrilla propagates.
 
The Hydrilla has many advantages when likened to other plants. It can grow in very low light with 1% sunshine. indigenous floras in the same area as a Hydrilla get insubstantial amounts of nutrients because of the Hydrillas absorption rate. Hydrillas are labeled as a noxious pest because of their fast growth rate that makes them a menace to other native plants. It is believed to be dangerous because it is almost unseen properly before it totally tops out a lake, pond, or a specific area. Hydrillas will ofttimes choke out indigenous marine plants because they take up so much surface area absorbing the sunlight and nutrients.
 
Each year, millions of dollars worth of weed killers and mechanical harvesters are used to keep this obnoxious pest under proper control, so that it doesn’t cross the limit. Since it harms the vegetation around it, people can’t even fish around areas these grow. Slowed water flow and clogged up irrigation or flood control ducts are as a result of Hydrilla over growth. Hydrilla impedes bathers, boatmen and fishers alike. Mass amounts of Hydrilla can severely lower the oxygen levels of the water it is growing in.
 
Elodea and Egeria are oftentimes confused for Hydrilla. The aquatic floras Elodea and Egeria are frequently thought to be Hydrilla. In the case of a Hydrilla, there is one or more teeth located at the undersurface of the midrib. But for Elodea and Egeria, this is not present. Due to these teeth, we feel the roughness of these plants when we rub over from its base to the tip. The blossoms the Egeria produce are also bigger than the Hydrilla. 
 
Macro and micro invertebrates feed on Hydrilla. Upon dying, these micro and macro organisms break up and become food for other land and aquatic wildlife. When Hydrilla dies naturally, they are decayed by bacteria and fungi and the end result is “detritus” a food for several marine invertebrates. Many ducks consume Hydrilla turions and tubers, but it is not considered a fine wildlife feed.