Carex amphibola narrow-leaf sedge Cyperaceae CAAM; Bx, pb; NY, iw; R, gb, h;

 

Carex amphibola Arthur Haines.Copyright © 2014 New England Wild Flower Society.gobotany.newenglandwild.org

Carex amphibola Arthur Haines.Copyright © 2014 New England Wild Flower Society.gobotany.newenglandwild.org. (Accessed 9/2014).

Carex amphibola perennial, tufted, to 80 cm, often less, stem ca 0.2 cm wide, sharply 3-sided, bases brownish, plant light green, leafy stemmed. 

Leaves broad, 0.4-0.8 cm wide; bracts leafy with well developed sheath, usually longer than inflorescence. 

Flower spikes pale, terminal spike male, usually longer than uppermost female spikes, female spikes 2-5, few flowered, about 1.5 cm long, 0.5 cm wide, separate, stalked (except top-most), perigynium about 0.5 cm, egg-shaped, bead-like, beakless, scales narrow with awn barely projecting beyond rounded top of perigynium, achenes 3-sided with slightly concave sides; blooming and fruiting May-July. 

Wetland status: FAC. 

Frequency in NYC: Infrequent. 

Origin: Native. 

Habitat: Open moist or wet soil, pond edges, trail margins in moist woods, soil pH 5.9-7, tolerant of fire and shade, moderately tolerant of anaerobic soil, intolerant of drought and salt (USDA, NRCS 2010).