Data provided by the participants of the Consortium of California Herbaria

View additional distribution information on the Jepson eflora

Glyceria grandis is a species of mannagrass known by the common name American mannagrass. It is native to Canada and the United States, where it is widespread in distribution. It is most commonly found in wet areas such as riverbanks and ponds. This is a rhizomatous perennial grass bearing thin stems which approach two meters in maximum height. The sturdy leaves each have a prominent central vein. The tops of the stems are occupied with spreading, multibranched flower clusters bearing many small, oval-shaped spikelets.

Plant type

Grass

Size

4 - 7 ft Tall

Calscape icon
Color

Brown

Sun

Full Sun

Site type

Wet places, meadows, lake and stream Edges

Plant communities

Freshwater Marsh, Wetland-Riparian

Caterpillars
Butterflies

Butterflies and moths supported

0 confirmed and 2 likely

Confirmed Likely

Lesser Wainscot

Mythimna oxygala

Armyworm Moth

Mythimna unipuncta