Bogs and Acidic Peatlands of Southern New England by Marsha C. Salett
Taxonomy
Glyceria obtusa (Muhl.) Trin.
POACEAE (Grass Family)
EtymologyGlyceria is derived from the Greek, glykys, which means sweet, in reference to the sweet, edible grains of Glyceria fluitans; obtusa is Latin for blunted or rounded.
Synonyms (Common Name)Atlantic Manna Grass, Spiked Manna Grass, Blunt Manna Grass
DescriptionA perennial grass that grows 2 - 3 1/2' tall, coastal manna grass has long leaves and an erect, closed terminal panicle. The dense, compact panicle is 5-7" long and has numerous ascending branches that bear several spikelets.
Wetland indicator statusOBL
Plant Height2-3.5 feet
LeavesLinear, to 20" long, to 3/8" wide, rough above; sheath nearly half closed.
Flower/InflorescenceTerminal panicle to 7" long; closed; dense and compact, oblong or ovoid, many upright branches, each bearing several spikelets; spikelet obovate, to 3/8" long, with 4-7 flowers; lemma blunt, thick, several-nerved.
Flowering PeriodAugust-September
HabitatBogs, wooded swamps, wet woods, shallow water.
RangeNova Scotia to North Carolina along coast; inland to eastern New York and Pennsylvania.
(c) 1998-2006 Marsha C. Salett