American Mannagrass - Glyceria grandis
MNPS Threat Rank
Stems 1–2 m. Leaves: blades 2–12 mm wide, ligules mostly 5–7 mm long. Inflorescence an open diffuse panicle, 20–40 cm long, the branches spreading and often drooping. Spikelets 3–7 mm long, laterally compressed. Lemmas 2 to 7 (rarely 8) per spikelet (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
Throughout most of North America excepting many southeastern states. (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Observations in Montana Natural Heritage Program Database
Number of Observations:
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(Observations spanning multiple months or years are excluded from time charts)
- Additional ReferencesLegend: View Online Publication
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- Joslin, G.J. 1975. Behavior and environmental selection by Elk (Cervus canadensis nelsoni) during surrmer and fall in the First and Second Yellow Mule drainages, Madison County, Montana. M.Sc. Thesis. Bozeman, Montana: Montana State University, Bozeman. 65 p.
- Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.