Carex dioica var. metteniana Láng = Carex dioica L.
English:
dioicus,-a,-um;

https://archive.org/stream/linnaea24schl#page/495/mode/2up
homotypic synonyms:
Carex metteniana (Láng) Lehm. ex Schur;

protologue: Linnaea 24: 495 (1851)

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