Glyceria obtusa coastal mannagrass Poaceae GLOB; R;

Glyceria obtusa.Donald Cameron.New England Wild Flower Society.gobotany.newenglandwild.org

Glyceria obtusa.Donald Cameron.New England Wild Flower Society.gobotany.newenglandwild.org (Accessed 5/2014).

Glyceria obtusa is a perennial grass 60 cm to 1 m tall, freely branched; 

Leaves with sheaths closed except at top, ligule less than 0.1 cm, stem leaves 3-6, 0.3-0.8 cm wide, rough textured above. 

Flower spikelets 3-7 flowered, 0.4-0.7 cm long, glumes broad, lemmas blunt to 0.4 cm; inflorescence branched, very contracted, thick, dense, cylindrical to elliptic 6-12 cm long, Aug.-Sept. 

Wetland status: OBL. 

Frequency in NYC: Very infrequent. 

Origin: Native. 

Habitat: Wet woods, marshes, peaty or sandy soil.