Longleaf pondweed | |
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Conservation status | |
Least Concern (IUCN 3.1) | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Monocots |
Order: | Alismatales |
Family: | Potamogetonaceae |
Genus: | Potamogeton |
Species: | P. nodosus |
Binomial name | |
Potamogeton nodosus Poir. | |
Synonyms | |
Potamogeton americanus |
Potamogeton nodosus is a species of aquatic plant 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 submerged leaves are linear to widely lance-shaped and up to 15 by 4 centimetres (5.9 in × 1.6 in) in length and width, respectively, while the floating leaves achieve shorter maximum lengths and are ovate or elliptic. 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.
References
- Lansdown, R.V. (2017). "Potamogeton nodosus". IUCN Red List of Threatened Species. 2017: e.T164227A67791533. doi:10.2305/IUCN.UK.2017-1.RLTS.T164227A67791533.en. Retrieved 25 November 2023.
- NRCS. "Potamogeton nodosus". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 13 October 2015.
- BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.
- Hellquist, C. Barre; Thorne, Robert F.; Haynes, Robert R. (2012). Jepson Flora Project (ed.). "Potamogeton nodosus Long-Leaved Pondweed". Jepson eFlora. Regents of the University of California. Retrieved 25 November 2023.
External links
Taxon identifiers | |
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Potamogeton nodosus |
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