American mannagrass
Glyceria grandis var. grandis S. Watson

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EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit

EDDMapS Distribution

State Invasive List - This map identifies those states that list this species on their invasive species list. For more information, visit

State Invasives List

Invasive Listing Sources

Taxonomic Rank

Kingdom: Plantae
Phylum: Magnoliophyta
Class: Liliopsida
Subclass: Commelinidae
Order: Cyperales
Family: Poaceae
Genus: Glyceria

Other System Links

Plants: GLGRG
ITIS: 528256

Synonyms and Other Names

Related Scientific Names:

Glyceria spectabilis (Hartman) Holmb.(Synonym)
Molinia maxima (Hartman) Holmb.(Synonym)


Category: Grass or Grasslike