Potamogeton perfoliatus, L.
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https://doi.org/10.5281/zenodo.293845 |
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https://treatment.plazi.org/id/03BD9943-FFB0-FF90-C4AB-F3D0F48085AA |
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Plazi |
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Potamogeton perfoliatus |
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9. P. perfoliatus L. View in CoL , Sp. Pl. 126 (1753) View Cited Treatment .
Leaves up to 10 x 6 cm, all submerged, sessile, ovate or orbicular-ovate to lanceolate, cordate and amplexicaul at the base, obtuse or rounded at the apex and often somewhat cuculiate, minutely denticulate at least when young. Stipules small, membranous, evanescent. Fruitlets 3-3-5 mm. 2« = 52. Throughout Europe except for some of the islands. All except Az BI Co Cr Sa Sb Si.
P. x cooperi (Fryer) Fryer, Rep. Bot. Exch. Club Brit. Is. 1895: 497 (1897) ( P. cymatodes Ascherson & Graebner) (9 x 19) is a fairly frequent hybrid which can be confused with 9.
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 perfoliatus
| Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A. 1980 |