Carex nigra
Carex nigra is a perennial species of plant in the sedge family Cyperaceae. Common names include: smooth black sedge,[1]black sedge and common sedge.[2]
Description
Carex nigra is a tussock-forming, evergreen perennial sedge, reaching up to 70cm in height. Leaves are bluish-green in colour.[3] Flower spikes and seed heads are purplish-black, appearing in early to late summer.[2]
Distribution and habitat
It is native to wetlands of Europe, western Asia, north Africa,[4] and eastern North America.[5] The eastern limit of its range reaches central Siberia, Turkey and the Caucasus.[6] It favours marshes, wetlands and alkaline fens.[7]
References
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