Buccaferrea rufescens (Schrad.) Bubani, 1902 | Potamogeton alpinus var. lacustris T.Marsson, 1869 | Potamogeton alpinus var. obscurus (DC.) Baguet, 1876 | Potamogeton alpinus var. spathulatus T.Marsson, 1869 | Potamogeton caspargi Kohts, 1870 | Potamogeton microstachys Wolfg., 1827 | Potamogeton obrutus Alf.Wood, 1845 | Potamogeton obscurus DC., 1815 | Potamogeton obtusus Ducros ex Gaudin, 1828 | Potamogeton purpurascens Seidl, 1819 | Potamogeton rigidus Wolfg., 1827 | Potamogeton rufescens Schrad., 1815 | Potamogeton rufescens subsp. rigidus (Wolfg.) K.Richt., 1890 | Potamogeton rufescens var. alpinus Mert. & W.D.J.Koch, 1814 | Potamogeton rufescens var. angustifolius Fieber, 1838 | Potamogeton rufescens var. palustris Mert. & W.D.J.Koch, 1814 | Potamogeton rufescens var. rivularis Mert. & W.D.J.Koch, 1814 | Potamogeton rufescens var. spathulatus (T.Marsson) Rouy, 1912 | Potamogeton semipellucidus W.D.J.Koch & Ziz, 1814 | Potamogeton stylatus Hagstr., 1916 | Potamogeton thomasii A.Benn., 1892