Carex hirta is a perennial sedge from stout rhizomes, widely creeping, colonial and tufted, to 60 cm tall, hairy, stem bluntly 3-angled, bases often dark reddish.
Leaves 0.3-0.6 cm wide, sparsely hairy, sheaths densely pale hairy.
Flowers monoecious; male spikes 1-3, 2-3 cm long, at top of stem, on a long stalk, female spikes 2-3, widely separated, 2-5 cm long, slender-cylindrical, densely flowered, short-stalked, erect, bracts, leaf-like with hairy sheaths, perigynia hairy, narrowly egg-shaped, 0.5-0.8 cm, veins conspicuous, beak prominently toothed, 2-3 mm, scales pointed to awned, shorter than to about as long as perigynia, achene 3-sided.
Wetland status: UPL.
Frequency in NYC: Very infrequent.
Habitat: Open, disturbed upland areas, roadsides, construction sites.