Africa or South America
May form mats that can disrupt aquatic plant and animal communities, as well as interfere with water movement and navigation.
A floating aquatic plant that has the ability to form large dense mats. Leaves are rosette in shape and gray-green in color, hairy, ridged and are broader than long. Flowers are inconspicuous and fruit is a many-seeded green berry.
Resembles a head of lettuce. Very thick leaves appear to have scalloped edges.
Observed in the St. Johns River around 1928 (Langeland and Burks, 1998).
Found throughout the state of Florida; mainly central and southern parts.
Do not plant or release into water gardens or natural waterways. Check watercraft propellers and trailers for plant material before and after entry into waterways.
For more information visit Protect Your Waters.