Photographs of
California's Common Aquatic Weeds

American Pondweed (Potamogeton nodosus)
Brazilian Elodea (Egeria densa)
Cattails (Typha latifolia)
Common Waterweed (Elodea canadensis)
Coontail (Ceratophyllum demersum)
Curly Leaved Pondweed (Potamogeton crispis)
Duckweed (Lemna spp.)
Eurasian Watermilfoil (Myriophyllum spicatum)
Filamentous Algae
Horned Pondweed (Zannichellia palustris)
Hydrilla (Hydrilla verticillata)
Muskgrass (Chara spp.)
Naiads (Najas spp.)
Parrot's Feather (Myriophyllum aquaticum)
Planktonic Algae
Sago Pondweed (Potamogeton pectinatus)
Variable Leaved Pondweed (Potamogeton gramineus)
Waterfern (Azolla filiculoides)
Watermeal (Wolffia)
Widgeon Grass (Ruppia spp.)
Water Hyacinth (Eichhornia crassipes )
Water Penny (Hydrocotyl spp.)
Water Primrose (Ludwigia peploides )

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