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

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

Neotype ( Luceño & Aedo in Bot. J. Linn. Soc. 114: 207, f. 9. 1994): Sweden. C.M. Norman, s.n., left specimen (MA).

Current name: Carex nigra (L.) Rchb. ( Cyperaceae).