Carex acuta Linnaeus var. rufa Linnaeus, Species Plantarum 2: 978. 1753.

"Habitat in Europa ubique: in aquosis." RCN: 7092.

Lectotype (Egorova in Cafferty & Jarvis in Taxon 53: 178. 2004): Herb. Burser I: 68 (UPS) .

Current name: Carex riparia Curtis ( Cyperaceae).

Note: Varietal epithet spelled “ruffa” in the protologue.