Freshwater ecosystems include lakes, rivers, ponds, and streams; they all have low salt concentration. Ponds and lakes can vary in size and have limited plant and animal species. Rivers and streams originate in headwaters; you can see different specie as you move from the headwaters to the mouth of the river; light and oxygen are the determining factors. Wetlands are standing water like marshes and swamps; they have a large variety of plant and specie, including reptiles, amphibians, and birds.
American lotusAmerican lotus,
Center for Aquatic and Invasive Plants,
University of Florida,
Photos and a 2-3 minute video.
http://plants.ifas.ufl.edu/node/10
Blue-green AlgaeBlue-green Algae,
Florida Department of Environmental Protection,
A photo and description.
http://www.dep.state.fl.us/water/bgalgae/
ButtonbushButtonbush,
Aquaplant @ Texas A&M University,
Photo and description.
http://aquaplant.tamu.edu/plant-identification/alp...
Carnivorous Plants / Insectivorous Plants Carnivorous Plants / Insectivorous Plants,
Botanical Society of America,
A gallery of photos; click on a photo for more photos and information
http://www.botany.org/Carnivorous_Plants/
Common Duckweed Common Duckweed,
AcquaPlant,
Texas AgriLife Extension Service,
Photo and description.
http://aquaplant.tamu.edu/plant-identification/alp...
CoontailCoontail,
Center for Aquatic and Invasive Plants,
University of Florida,
Text, photos, and a 2-3 minute video.
https://plants.ifas.ufl.edu/plant-directory/cerato...
Cypress TreesCypress Trees,
University of Southern Indiana,
Photos and description; check out those "knees".
http://www.usi.edu/science/biology/twinswamps/cypr...
DiatomsDiatoms,
Kids.Net.Au,
Encyclopedic article for younger students.
http://encyclopedia.kids.net.au/page/di/Diatoms
Diatoms: Life History and EcologyDiatoms: Life History and Ecology,
University of California Museum of Paleontology,
Text and two images; click to enlarge.
http://www.ucmp.berkeley.edu/chromista/diatoms/dia...
EEK! Eurasian Water-milfoilEurasian Water-milfoil,
EEK!m
Wisconsin Department of Natural Resources,
Information for younger students.
http://dnr.wi.gov/org/caer/ce/eek/veg/plants/euras...
Everglades Habitat Images Everglades Habitat Images,
National Park Service,
Visit the web site for the photos.
http://www.nps.gov/ever/parknews/evergladeshabitat...
MacrophytesMacrophytes,
Biology-Online.org,
Mostly text with an illustration showing examples of macrophytes.
http://www.biology-online.org/articles/macrophytes...
Plant IdentificationPlant Identification,
Aquaplant,
Texas AgriLife Extension Service,
Department of Wildlife & Fisheries Sciences,
Texas A&M University,
Here you can identify aquatic plants using alphabetical or
http://aquaplant.tamu.edu/plant-identification/
The Charms of Duckweed The Charms of Duckweed,
by John W. Cross,
Missouri Botanical Garden,
A combination of text, illustration, and photos.
http://www.mobot.org/jwcross/duckweed/duckweed.htm
The Value of Riparian VegetationThe Value of Riparian Vegetation,
King County,
State of Washington,
Text and one photo.
http://www.kingcounty.gov/environment/animalsAndPl...
WillowWillow,
Aquaplant @ Texas A&M University,
Photo and description.
http://aquaplant.tamu.edu/plant-identification/alp...