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|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Index to accepted names and synonyms:
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|Family: Potamogetonaceae||View Description||Dichotomous Key|
|Genus: Potamogeton||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Potamogeton natans L.
Habit: Perennial herb, rhizomed. Stem: < 160 cm, generally simple, subcylindric. Leaf: submersed 10--30 cm, < 2 mm wide, linear, sessile; floating 6--11 cm, < 60 mm wide, oblong to widely elliptic, base +- lobed, tip rounded, veins 17--37, petiole lighter green near blade; stipules 6--8 cm, free, persistent. Inflorescence: < 5 cm. Fruit: 3.5--5 mm, keels +- 0, sides concave. Chromosomes: 2n=52.
Ecology: Shallow, fresh or brackish water, lakes, ponds, bogs, marshes, lagoons, streams; Elevation: < 2700 m. Bioregional Distribution: NCo, NCoR, CaRH, SNH, SnJV, SnFrB, SnBr, PR, MP; Distribution Outside California: to Alaska, eastern North America, Baja California; Eurasia. Flowering Time: Jun--Aug Note: Hybridizes with Potamogeton gramineus, Potamogeton nodosus.
eFlora Treatment Author: C. Barre Hellquist, Robert F. Thorne & Robert R. Haynes
Jepson Online Interchange
Previous taxon: Potamogeton illinoensis
Next taxon: Potamogeton nodosus
Citation for this treatment: C. Barre Hellquist, Robert F. Thorne & Robert R. Haynes 2016. Potamogeton natans, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=39591, accessed on February 10, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 10, 2016.