|University of California, Berkeley|
|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Index to accepted names and synonyms:
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|Family: Hydrocharitaceae||View Description||Dichotomous Key|
|Genus: Najas||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Najas flexilis (Willd.) Rostk. & W.L.E. Schmidt
Habit: Monoecious. Stem: internodes not prickled. Leaf: margin teeth 35--80 per side, tip acute, with 1--2 teeth; sheath tip rounded. Staminate Flower: 1--3 mm; anther chambers 1. Pistillate Flower: 2.5--4.7 mm; stigma 3-lobed. Seed: 0.2--1.2 mm wide, narrowly to widely obovate, coat smooth, shiny. Chromosomes: 2n=12,24.
Ecology: Uncommon. Ponds, lakes; Elevation: < 1500 m. Bioregional Distribution: KR, NCoRI, expected elsewhere; Distribution Outside California: to Canada, northeastern United States; northern Europe. Flowering Time: Jun--Sep
eFlora Treatment Author: Robert F. Thorne, C. Barre Hellquist & Robert R. Haynes
Jepson Online Interchange
Previous taxon: Najas
Next taxon: Najas gracillima
Citation for this treatment: Robert F. Thorne, C. Barre Hellquist & Robert R. Haynes 2017. Najas flexilis, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=34350, accessed on March 26, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on March 26, 2017.