Taxon: Glyceria grandis S. Watson

Summary

Genus:

Glyceria

Family:

Poaceae (alt. Gramineae)

Subfamily:

Pooideae

Tribe:

Meliceae

Nomen number:

17677

Place of publication:

A. Gray, Manual ed. 6:667. 1890

Verified:

05/08/1992 ARS Systematic Botanists.

Accessions:

5 (4 active, 1 available) in National Plant Germplasm System. (Map it)

Other conspecific taxa

Glyceria grandis S. Watson var. grandis (1 active accession[s])
Glyceria grandis S. Watson var. komarovii Kelso (0 active accession[s])

Autonyms (not in current use), synonyms and invalid designations

Heterotypic Synonym(s)
Panicularia americana (Torr.) MacMill.
Poa aquatica L. var. americana Torr.

Images (1 total. Click on image for more.)

Links

Florets – Seed ID Workshop image, from Department of Horticulture and Crop Science, Ohio State University

Conservation Status

Reference(s)

Chester, E. W. et al. 1993-1997. Atlas of Tennessee vascular plants.
Cronquist, A. et al. 1972-. Intermountain flora.
Gleason, H. A. & A. Cronquist. 1991. Manual of vascular plants of northeastern United States and adjacent Canada, ed. 2
Godfrey, R. K. & J. W. Wooten. 1979-1981. Aquatic and wetland plants of southeastern United States, 2 vol.
Hickman, J. C., ed. 1993. The Jepson manual: higher plants of California
Hitchcock, A. S. 1950. Manual of the grasses of the United States, ed. 2.
Hitchcock, C. L. et al. 1955-1969. Vascular plants of the Pacific Northwest.
Markle, G. M. et al., eds. 1998. Food and feed crops of the United States, ed. 2
Martin, W. C. & C. R. Hutchins. 1980. A flora of New Mexico.
McGregor, R. L. et al. (The Great Plains Flora Association). 1986. Flora of the Great Plains.
Munro, D. B. Canadian poisonous plants information system (on-line resource).
Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol.
Welsh, S. L. et al. 1993. A Utah flora.

Common names

Language	Name	Alternate name	note	seq	Citation
English	American manna grass			1	Cronquist, A. et al. 1972-. Intermountain flora.
English	tall manna grass			1	McGregor, R. L. et al. (The Great Plains Flora Association). 1986. Flora of the Great Plains.

Distribution

order_code	Status	Continent	Subcontinent	Country	State	Note	Reference
1	Native	Northern America	Eastern Canada	Canada	New Brunswick		Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol.
1	Native	Northern America	Eastern Canada	Canada	Newfoundland and Labrador		Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol.
1	Native	Northern America	Eastern Canada	Canada	Nova Scotia		Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol.
1	Native	Northern America	Eastern Canada	Canada	Ontario		Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol.
1	Native	Northern America	Eastern Canada	Canada	Prince Edward Island		Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol.
1	Native	Northern America	Eastern Canada	Canada	Québec		Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol.
1	Native	Northern America	North-Central U.S.A.	United States	Illinois
1	Native	Northern America	North-Central U.S.A.	United States	Iowa
1	Native	Northern America	North-Central U.S.A.	United States	Minnesota
1	Native	Northern America	North-Central U.S.A.	United States	Nebraska		McGregor, R. L. et al. (The Great Plains Flora Association). 1986. Flora of the Great Plains.
1	Native	Northern America	North-Central U.S.A.	United States	North Dakota		McGregor, R. L. et al. (The Great Plains Flora Association). 1986. Flora of the Great Plains.
1	Native	Northern America	North-Central U.S.A.	United States	South Dakota		McGregor, R. L. et al. (The Great Plains Flora Association). 1986. Flora of the Great Plains.
1	Native	Northern America	North-Central U.S.A.	United States	Wisconsin
1	Native	Northern America	Northeastern U.S.A.	United States	Connecticut
1	Native	Northern America	Northeastern U.S.A.	United States	Indiana
1	Native	Northern America	Northeastern U.S.A.	United States	Maine
1	Native	Northern America	Northeastern U.S.A.	United States	Massachusetts
1	Native	Northern America	Northeastern U.S.A.	United States	Michigan
1	Native	Northern America	Northeastern U.S.A.	United States	New Hampshire
1	Native	Northern America	Northeastern U.S.A.	United States	New York
1	Native	Northern America	Northeastern U.S.A.	United States	Ohio
1	Native	Northern America	Northeastern U.S.A.	United States	Pennsylvania
1	Native	Northern America	Northeastern U.S.A.	United States	Vermont
1	Native	Northern America	Northeastern U.S.A.	United States	West Virginia
1	Native	Northern America	Northwestern U.S.A.	United States	Colorado
1	Native	Northern America	Northwestern U.S.A.	United States	Idaho		Hitchcock, C. L. et al. 1955-1969. Vascular plants of the Pacific Northwest.
1	Native	Northern America	Northwestern U.S.A.	United States	Montana
1	Native	Northern America	Northwestern U.S.A.	United States	Oregon	n.w. & e.	Hitchcock, C. L. et al. 1955-1969. Vascular plants of the Pacific Northwest.
1	Native	Northern America	Northwestern U.S.A.	United States	Washington		Hitchcock, C. L. et al. 1955-1969. Vascular plants of the Pacific Northwest.
1	Native	Northern America	Northwestern U.S.A.	United States	Wyoming
1	Native	Northern America	South-Central U.S.A.	United States	New Mexico		Martin, W. C. & C. R. Hutchins. 1980. A flora of New Mexico.
1	Native	Northern America	Southeastern U.S.A.	United States	Tennessee		Chester, E. W. et al. 1993-1997. Atlas of Tennessee vascular plants.
1	Native	Northern America	Southeastern U.S.A.	United States	Virginia
1	Native	Northern America	Southwestern U.S.A.	United States	Arizona
1	Native	Northern America	Southwestern U.S.A.	United States	California	n.w.	Hickman, J. C., ed. 1993. The Jepson manual: higher plants of California
1	Native	Northern America	Southwestern U.S.A.	United States	Nevada	n.	Cronquist, A. et al. 1972-. Intermountain flora.
1	Native	Northern America	Southwestern U.S.A.	United States	Utah		Welsh, S. L. et al. 1993. A Utah flora.
1	Native	Northern America	Subarctic America	United States	Alaska
1	Native	Northern America	Western Canada	Canada	Alberta		Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol.
1	Native	Northern America	Western Canada	Canada	British Columbia		Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol.
1	Native	Northern America	Western Canada	Canada	Manitoba		Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol.
1	Native	Northern America	Western Canada	Canada	Saskatchewan		Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol.

Native
Northern America

SUBARCTIC AMERICA: United States [Alaska]
EASTERN CANADA: Canada [New Brunswick, Newfoundland and Labrador, Nova Scotia, Ontario, Prince Edward Island, Québec]
WESTERN CANADA: Canada [Alberta, British Columbia, Manitoba, Saskatchewan]
NORTHEASTERN U.S.A.: United States [Connecticut, Indiana, Maine, Massachusetts, Michigan, New Hampshire, New York, Ohio, Pennsylvania, Vermont, West Virginia]
NORTH-CENTRAL U.S.A.: United States [Illinois, Iowa, Minnesota, Nebraska, North Dakota, South Dakota, Wisconsin]
NORTHWESTERN U.S.A.: United States [Colorado, Idaho, Montana, Oregon (n.w. & e.), Washington, Wyoming]
SOUTHEASTERN U.S.A.: United States [Tennessee, Virginia]
SOUTH-CENTRAL U.S.A.: United States [New Mexico]
SOUTHWESTERN U.S.A.: United States [Arizona, California (n.w.), Nevada (n.), Utah]

Reference(s)

Chester, E. W. et al. 1993-1997. Atlas of Tennessee vascular plants.
Cronquist, A. et al. 1972-. Intermountain flora.
Hickman, J. C., ed. 1993. The Jepson manual: higher plants of California
Hitchcock, C. L. et al. 1955-1969. Vascular plants of the Pacific Northwest.
Martin, W. C. & C. R. Hutchins. 1980. A flora of New Mexico.
McGregor, R. L. et al. (The Great Plains Flora Association). 1986. Flora of the Great Plains.
Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol.
Welsh, S. L. et al. 1993. A Utah flora.

Economic Uses

Usage	Type	Note	Reference
Vertebrate poisons	mammals		Munro, D. B. Canadian poisonous plants information system (on-line resource).

Cite as: USDA, Agricultural Research Service, National Plant Germplasm System. 2026. Germplasm Resources Information Network (GRIN Taxonomy). National Germplasm Resources Laboratory, Beltsville, Maryland.
URL: https://npgstest.ars-grin.gov/gringlobal/taxon/taxonomydetail?id=17677. Accessed 14 April 2026.