Northeastern Asian Flora
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Potamogeton praelongus Wulfen   (redirected from: Potamogeton praelongus f. pygmaeus Galinis)
Family: Potamogetonaceae
[Potamogeton flexuosus Wredow, morePotamogeton praelongus f. pygmaeus Galinis, Spirillus praelongus (Wulfen) Nieuwl.]
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  • Japan Flora
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Japan Flora: Stems branched; leaves all submersed, narrowly lanceolate, 10-20 cm. long, 1-2.5 cm. wide, narrowed toward the obtuse ends, cucullate and recurved at apex, rather many-nerved; stipules whitish, obtuse at apex; peduncles elongate, not thickened above; spikes 3-5 cm. long; nudets about 4 mm. long, the keel entire. 

Hokkaido. Europe, Siberia, and N. America.

Potamogeton praelongus
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Development supported by College of Agriculture and Life Sciences of Seoul
National University and Korea National Arboretum of Korea Forest Service.
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