Carex virescens is a perennial, densely tufted sedge, stems hairy, fertile stems 0.3-1 m tall, reddish-purple at base, rough above, taller than leaves.
Leaves 0.2-0.4 cm wide, pale green, hairy.
Flower spikes 2-4; 2-4 cm long, 0.3 cm wide, linear-cylindrical, tapering at base, lower spikes usually with a short stalk, leaf-like bract almost sheathless, upper spikes sessile with reduced bracts; terminal spike with female flowers above, male flowers below, lower spikes all female, flowers (perigynia) 0.2-0.3 cm, densely hairy, bluntly 3-sided, elliptical, with a few conspicuous ribs, tip pointed, scale whitish with green midrib, about as long as perigynia; achene 3-sided; blooms June-July.
Wetland status: UPL.
Frequency in NYC: Very infrequent.
Habitat: Dry woods.