Potamogeton natans, L.
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https://doi.org/10.5281/zenodo.293845 |
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https://treatment.plazi.org/id/03BD9943-FFB0-FF90-C2B3-FCD8FDD58D57 |
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Plazi |
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Potamogeton natans |
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1. P. natans L., View in CoL Sp. Pl. 126 (1753) View Cited Treatment .
Floating leaves up to 12-5x 7 cm, ovate to elliptical or lanceolate, cuneate to subcordate at the base, opaque; petiole often longer than the lamina, with a discoloured flexible joint immediately below the lamina. Submerged leaves less than 3 mm wide, reduced to narrowly linear, obtuse, opaque phyllodes, often disappearing early. Stipules large, closely veined, often fibrous-persistent. Fruitlets 3-4 mm. 2« = 52. Almost throughout Europe. All except Az BI?Cr Sb?Tu.
P. xfluitans Roth , Tent. FI. Germ. 1: 72 (1788) ( P. sterilis Hagström ) (1 x 5) and P. x sparganifolius Laest. ex Fries, Nov. FI. Suec. Mantissa 1: 9 (1832) (1 x 6) are the most frequent hybrids of 1, from which they differ in their laminate (not phyllodal) submerged leaves.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Potamogeton natans
| Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A. 1980 |