. _:b75883517 . "8235494" . _:b75441483 . "52333" . "150049" . . _:b75883517 "GBIF id" . _:b75883517 . . . . _:b75441483 "52333" . . _:b75883517 . "Potamogeton rufescens var. rivularis" . . _:b75883517 "8235494" . _:b75441483 "BDTFX id" . _:b75441483 . _:b75441483 . "Potamogeton rufescens var. rivularis Mert. & W.D.J.Koch, 1814" . "Mert. & W.D.J.Koch, 1814" . . "Potamogeton rufescens var. rivularis" .