Protect Our Waters: Stop the Spread of Invasive Plants

Educational Poster

Dimensions: 18″ x 24″

click on image to enlarge

1. Alligatorweed (Alternanthera philoxeroides) – an emersed plant native to South America
2. Water lettuce (Pistia stratiotes) – a free-floating plant; nativity disputed
3. Torpedograss (Panicum repens) – a wetland grass native to Africa, Asia, Europe
4. Water hyacinth (Eichhornia crassipes) – a free-floating plant native to Brazil
5. Giant salvinia (Salvinia molesta) – a floating plant native to South America
6. Hydrilla (Hydrilla verticillata) – a submersed plant native to Africa, Asia, and Europe
7. Largemouth bass (Micropterus salmoides)
8. Yellow-bellied slider (Trachemys scripta scripta)
9. Alligatorweed flea beetle (Agasicles hygrophila) – a biological control agent introduced to control alligatorweed
10. Dragonfly – a beneficial native insect that eats mosquitos
11. Dragonfly nymph – a casing after emergence
12. Mosquito – an insect pest that can harm humans and animals; it can breed beneath dense aquatic weed infestations


Check out our new educational poster, Protect Our Waters – Stop the Spread of Invasive Plants. We are excited to have this new product for educators and aquatic plant management enthusiasts. This 18” x 28” poster was conceived and executed by the CAIP Information Office and botanical illustrator Mindy Lighthipe. Mindy put her outstanding talents to use in depicting 6 of Florida’s most invasive aquatic plants. As you can see, she also incorporated insects (including one successful biological control agent) and some native animals impacted by invasive plant infestations.

The poster was made possible with funds from the CAIP Endowment Fund. The main intent of the poster is to provide an attractive visual aid on aquatic invasive plants for secondary school students to make them aware of this subject and hopefully spark an interest. Laminated copies of the poster will be provided to Plant Camp and other Florida teachers for classroom use; non-laminated copies will be made available to aquatic plant management training and research conference attendees, and others interested in this subject.

Mindy is a professional artist with certification in botanical illustration from the New York Botanical Gardens. She teaches Scientific Illustration at the University of Florida and had a solo exhibition at the Florida Museum of Natural History. Learn more about her work at