Sign up for the iWire to get breaking , events and the species spotlight.

Invaders of Texas Login

Forgotten password?

Photographer: Troy Evans
Source: Eastern Kentucky University
Cover photo: TPWD Photo Archives

Giant Salvinia

Salvinia molesta

Origin: Native to Brazil

Impact: Giant salvinia is currently one of the most dangerous invasive aquatic plants in Texas. It damages aquatic ecosystems by outgrowing and replacing native plants that provide food and habitat for native animals and waterfowl.

Learn More: Species Profile.

Report Form


*** ATTENTION! *** THIS FORM IS CURRENTLY NOT WORKING. We are working to get it up and going again ASAP. In the meantime, please email your information and picture to

If you have spotted Salvinia molesta (Giant Salvinia), use this report form to send an email to the appropriate authorities. All fields marked with an asterisk (*) are required.

Your Name*


Phone Number*

Street Address*



Zip Code*

Location of Observation*
Enter Latitude and Longitude in decimal degrees or Click the Choose Location button and navigate to the point where the specimen was observed on the Google Map to automatically enter Latitutde and Longitude.

Latitude: Longitude:

Did You Collect a Specimen?*
Yes or No.

Host Plant
If applicable, what is the host plant?

Comments: Describe the species, impact, infestation or generally what you are seeing.

Image Upload*
Please upload a photo of the specimen or the site where the specimen was seen. Image file must be a .jpg, .gif or .png format.