Hydrilla is a fresh water flora. It is a flora that grows up to the surface in water of about 20 feet deep. Hydrillas are a common marine flora and can grow in a variety of peculiar water sorts. Hydrillas can grow in as little as a few inches of water or in as much as 20 feet of water. This plant can grow in either oligotrophic (low nutrient) or eutrophic (high nutrient) water.  
 
The tolerance temperature level of a Hydrilla is 20o C to 27o C; hence, it can’t stand harsh climates. The Hydrilla has long branches that spread out upon getting to the surface, shaping mats. The submerged stems of the Hydrilla can be as long as 25 feet. mostly off-white or yellowish in color. | The roots or Rhizomes of the Hydrilla are oftentimes yellowish or off-white in color. } The Hydrilla has a number of alternatives when it comes time to multiply. Fragmentation, from seeds, from tuber, and turions (auxiliary buds) are ways how this pest procreates.
 
The Hydrilla has many positives on its side when compared to other marine floras. The Hydrilla only needs 1% sunlight to grow. These plants also take up the rich nutrients from its place so that the other indigenous sources can’t get it. Hydrillas are marked as a noxious pest because of their fast growth rate that makes them a menace to other native plants. Hydrilla is especially dangerous because it can almost entirely take over a body of water before appearing on the surface. Hydrillas will ofttimes choke out native marine floras because they take up so much surface area absorbing the sunshine and nutrients.
 
Each year, millions are spent on herbicides and harvesting all in an attempt to curb the growth and spread of Hydrilla. People can’t fish in areas where Hydrilla is found because it so adversely effects the other plant life in the area. Slowed water flow and clogged up irrigation or flood control ducts are as a result of Hydrilla over growth. Swimming, boating, and fishing all are severely affected by it. When a lot of Hydrilla grows together, it can totally take down that areas water oxygen level.
 
Elodea and Egeria are ofttimes mixed up for Hydrilla. The marine floras Elodea and Egeria are often thought to be Hydrilla. Hydrilla can be identified by the teeth found on the undersurface of the midrib. But for Elodea and Egeria, this is not present. Due to these teeth, we feel the harshness of these floras when we rub over from its base to the tip. Also, Egeria has larger blossoms than the Hydrilla.
 
Hydrilla turns into food for macro and micro invertebrates. Upon dying, these micro and macro organisms decompose and become food for other land and marine wildlife. Bacteria and fungi disintegrate Hydrillas that die naturally and then create a food called debris, which many marine creatures eat. Ducks often eat Hydrilla turions and tubers, but this is not a substantial source of food. Ducks will oftentimes feed on the tubers and turions of Hydrilla, but they don’t make a great diet.

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