Carex nigra is a perennial species of plant in the sedge family Cyperaceae.

[4] Carex nigra is a tussock-forming, evergreen perennial sedge, reaching up to 70cm in height.

Leaves are grey-green in colour, with yellow margins.

Flower spikes and seed heads are purplish-black, appearing in early to late summer.

[6] The eastern limit of its range reaches central Siberia, Turkey and probably the Caucasus.