Stuckenia helvetica (G.Fisch.) Holub = Stuckenia pectinata (L.) Börner
English:
helveticus,-a,-um;

https://archive.org/stream/#page/364/mode/2up
homotypic synonyms:
Potamogeton helveticus (G.Fisch.) W.Koch; Potamogeton vaginatus f. helveticus (G.Fisch.) G.Fisch.; Potamogeton vaginatus subsp. helveticus (G.Fisch.) Schinz & Thell.; Potamogeton vaginatus var. helveticus G.Fisch.;

protologue: Preslia 68: 364 (1996 publ. 1997)

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