An invasive plant is a plant which is not from the U.S. but is brought here and cause a lot of problems.

Alligator weed- They are aggressive plants that for mats that cover the body of water. They impede navigation and displace native vegetation.



Giant salvinia- Free floating aquatic fern. Root has hairs on leaves resemble "egg beaters" structure. They reduce oxygen in water and negatively affect water quality. Once established it is almost impossible to eradicate.



Hydrilla- No seeds. Grows more than 1 inch a day. Submersed perennial aquatic plant. Shades out desirable native vegetation and impedes navigation.