''Potamogeton nodosus'' is a species of
aquatic plant
Aquatic plants are plants that have adapted to living in aquatic environments (saltwater or freshwater). They are also referred to as hydrophytes or macrophytes to distinguish them from algae and other microphytes. A macrophyte is a plant that ...
known by the common names longleaf pondweed
and Loddon pondweed.
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
An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed o ...
is a spike of many small flowers arising from the water on a
peduncle.
References
External links
Jepson Manual TreatmentFlora of North AmericaPhoto gallery
nodosus
Flora of North America
Flora of South America
Flora of Europe
Flora of Asia
Plants described in 1816
Freshwater plants
{{monocot-stub