''Glyceria borealis'' is a species of ''

Glyceria ''Glyceria'' is a widespread genus of grass family common across Eurasia, Australia, North Africa, and the Americas. ''Glyceria'' is known commonly as mannagrass in the United States, or, in the UK, sweet-grass. These are perennial rhizomatous ...

'' known by the common names northern mannagrass, boreal mannagrass, and small floating mannagrass. It is native to much of the northern half of North America, where it has a widespread distribution. This semiaquatic plant grows in wet areas in mountain forests, often in the water. It grows a tall and very thin stem often exceeding a meter in height when erect. It may bend, lie flat on the ground, or float in the water of ponds and streams. The leaves bear ligules up to a centimeter long. The narrow, long

inflorescence An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed o ...

has cylindrical spikelets one to two centimeters long, each made up of 6 to 11 florets with membranous margins.

References

External links

Jepson Manual Treatment

USDA Plants Profile

Photo gallery

borealis Borealis (Latin for ''northern'' or ''of the north'') may refer to: Astronomy * Borealis Basin or North Polar Basin, a basin on the planet Mars * Borealis quadrangle, an area on the planet Mercury ** Borealis Planitia, a basin within the quadran ...

Freshwater plants Native grasses of California Grasses of the United States Grasses of Canada Flora of the Sierra Nevada (United States) Flora without expected TNC conservation status {{Pooideae-stub