Data provided by the participants of the Consortium of California Herbaria

View additional distribution information on the Jepson eflora

Glyceria borealis is a species of mannagrass 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 flower cluster has cylindrical spikelets one to two centimeters long, each made up of 6 to 11 florets with membranous margins.

Plant type

Grass

Size

3 - 5 ft Tall

Form

Upright

Growth rate

Moderate

Calscape icon
Color

Green

Flowering season

Spring

Sun

Full Sun, Partial Shade

Soil description

Adaptable, tolerant of sand, loam and clay.

Site type

Shallow water, muddy shores, freshwater ponds, lakes,

Plant communities

Red Fir Forest, Yellow Pine Forest, Wetland-Riparian

Caterpillars
Butterflies

Butterflies and moths supported

0 confirmed and 3 likely

Confirmed Likely

Glassy Borer

Apamea devastator

Lesser Wainscot

Mythimna oxygala

Armyworm Moth

Mythimna unipuncta