Pondweed refers to many species and genera of aquatic plants and green algae:
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Potamogeton
''Potamogeton'' is a genus of aquatic, mostly freshwater, plants of the family Potamogetonaceae. Most are known by the common name pondweed, although many unrelated plants may be called pondweed, such as Canadian pondweed (''Elodea canadensis'' ...
'', a diverse and worldwide genus
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Elodea
''Elodea'' is a genus of 6 species of aquatic plants often called the waterweeds described as a genus in 1803. Classified in the frog’s-bit family ( Hydrocharitaceae), ''Elodea'' is native to the Americas and is also widely used as aquarium ve ...
'', found in North America
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Aponogeton
The Aponogetonaceae (the Cape-pondweed family or aponogeton family) are a family of flowering plants in the order Alismatales.
In recent decades the family has had universal recognition by taxonomists. The APG system (1998) and APG II system (20 ...
'', in Africa, Asia and Australasia
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Groenlandia
''Groenlandia'' is a monotypic genus of aquatic plants (pondweed) of the family Potamogetonaceae. The only species in the genus is ''Groenlandia densa''. Opposite-leaved pondweed is a common name for this plant. It is native to much of Europe, w ...
'', a genus of aquatic plants
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Stuckenia'', a genus of aquatic plants
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Charales
Charales is an order of freshwater green algae in the division Charophyta, class Charophyceae, commonly known as stoneworts. Depending on the treatment of the genus '' Nitellopsis'', living (extant) species are placed into either one family (Ch ...
, an order of green algae
{{Plant common name