Salvinia is a floating, rootless aquatic fern. It consists of horizontal stems that float just below the water surface and produce a pair of floating or emergent green leaves. Salvinia also bears a third leaf that is brown, highly divided and dangles underwater. Submersed leaves can grow great lengths and are commonly mistaken as roots. Salvinia is a very aggressive plant that can rapidly cover the surface of a water body.


  • 1

    Recreational activities such as swimming, fishing, and boating can be impaired, prevented, and even dangerous.

  • 2

    Excessive Aquatic weeds greatly detract from the aesthetic appeal and possible value of the overall property.

  • 3

    Excessive growth can lead to fish stunting, overpopulation, and in extreme cases, fish kills.

  • 4

    Floating weeds can blanket the entire surface and decrease the oxygen to dangerous levels for fish.

  • 5

    Too many weeds impede water flow in drainage ditches, irrigation canals, and culverts, causing water to back up.


Salvinia can be found in most of the contiguous states.