Dig deeper at SERNEC, a consortium of southeastern herbaria.
See herbarium specimens at the Atlas of Florida Vascular Plants
See more pictures at www.invasive.org.
Check out EDDMapS.org to see where this has been reported.
Monilophytes (ferns): Leptosporangiate Ferns (true ferns): Salviniales
Flora of North America
Click or hover over the thumbnails to see larger pictures.
Ted D. Center, USDA Agricultural Research Service, Bugwood.org bug_0002132
Dense, rapidly growing surface mats block sun to bottom plants and animals, per Invasive Plants, Guide to Identification, Impacts and Control.
COMPARE aquatic plants
Barry Rice, sarracenia.com, Bugwood.org bug_5391745
Hairs of upper leaf w 4 branches joined at tips, forming a cage-like structure, per Weakley's Flora.
Barry Rice, sarracenia.com, Bugwood.org bug_5391745b
Hairs on the leaf surface are shaped like egg beaters, per Invasive Plants, Guide to Identification, Impacts and Control.
COMPARE Salvinia species
Robert Vidéki, Doronicum Kft, Bugwood.org bug_5396833
Shade-grown leaves lie flat; sunlight and crowding cause crumpling, per Invasive Plants, Guide to Identification, Impacts and Control.
Leslie J. Mehrhoff, University of Connecticut, Bugwood.org bug_5457880
Perhaps introduced as plants sold to aquarium and koi pond owners, per Invasive Plants, Guide to Identification, Impacts and Control.