Potamogeton nodosus

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longleaf pondweed
Potamogeton nodosus.jpg
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Monocots
Order: Alismatales
Family: Potamogetonaceae
Genus: Potamogeton
Species: P. nodosus
Binomial name
Potamogeton nodosus

Potamogeton americanus
Potamogeton fluitans

Potamogeton nodosus is a species of aquatic plant known by the common names longleaf pondweed and Loddon pondweed.[1] It is native to Eurasia and the Americas, where it is widespread and can be found in water bodies such as ponds, lakes, ditches, and streams. This is a perennial herb producing a thin, branching stem easily exceeding a meter in maximum length. The leaves are linear to widely lance-shaped and up to 15 centimeters long by 4 wide. Both floating leaves and submerged leaves are borne on long petioles, a distinguishing characteristic. The inflorescence is a spike of many small flowers arising from the water on a peduncle.


  1. ^ "BSBI List 2007" (xls). Botanical Society of Britain and Ireland. Archived from the original on 2015-02-25. Retrieved 2014-10-17. 

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