Taxon:  Glyceria maxima (Hartm.) Holmb.



Summary
Genus:
Glyceria
Family:
Poaceae (alt. Gramineae)
Subfamily:
Pooideae
Tribe:
Meliceae
Nomen number:
17680
Place of publication:
Bot. Not. 1919:97.  1919
Verified:
03/14/1995 ARS Systematic Botanists.
Accessions:
1 (0  active, 0  available) in National Plant Germplasm System.  (Map it)
Other conspecific taxa
Autonyms (not in current use), synonyms and invalid designations
Basionym
Molinia maxima Hartm.

Heterotypic Synonym(s)
Glyceria aquatica (L.) Wahlb.
Glyceria aquatica (L.) Wahlb. var. aquatica
Glyceria spectabilis Mert. & W. D. J. Koch
Panicularia aquatica (L.) Kuntze
Poa aquatica L.
Poa aquatica L. var. aquatica

Images (3 total. Click on image for more.)
Disseminule drawings\; A: Spikelet; B-C: floret in two views; D-E: caryopsis in two views

Conservation Status

Reference(s)
  1. University of Georgia Center for Invasive Species and Ecosystem Health
  2. Aldén, B., S. Ryman, & M. Hjertson. 2012. Svensk Kulturväxtdatabas, SKUD (Swedish Cultivated and Utility Plants Database; online resource)
  3. Cooper, M. R. & A. W. Johnson. 1998. Poisonous plants and fungi in Britain: animal and human poisoning Note: poisonous
  4. Czerepanov, S. K. 1995. Vascular plants of Russia and adjacent states (the former USSR) Cambridge University Press.
  5. Darbyshire, S. J. 2003. Inventory of Canadian Agricultural Weeds Agriculture and Agri-Food Canada. 23.
  6. Davis, P. H., ed. 1965-1988. Flora of Turkey and the east Aegean islands.
  7. Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource).
  8. Groth, D. 2005. pers. comm. Note: re. Brazilian common names
  9. Hnatiuk, R. J. 1990. Census of Australian vascular plants. Australian Flora and Fauna Series No. 11.
  10. Holm, L. et al. 1979. A geographical atlas of world weeds
  11. Howell, C. J. & J. W. D. Sawyer. 2006. New Zealand naturalised vascular plant checklist
  12. Huxley, A., ed. 1992. The new Royal Horticultural Society dictionary of gardening
  13. Integrated Botanical Information System (IBIS). Australian plant common name database (on-line resource).
  14. Kartesz, J. T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland.
  15. Parsons, W. T. & E. G. Cuthbertson. 1992. Noxious weeds of Australia Inkata Press, Melbourne, Australia.
  16. Randall, R. P. 2007. The introduced flora of Australia and its weed status.
  17. Skvortsov, A. K., ed. 2006. Flora of the Lower Volga region 1:206-207.
  18. Soreng, R. J. et al. 2003. Catalogue of New World grasses (Poaceae): IV. Subfamily Pooideae. Contr. U.S. Natl. Herb. 48:375.
  19. Tutin, T. G. et al., eds. 1964-1980. Flora europaea.
  20. Tzvelev, N. N. 1976. Zlaki SSSR
  21. Weber, E. 2003. Invasive plant species of the world: a reference guide to environmental weeds
  22. Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition).
  23. 2018. Mid-Atlantic invasive plant species (on-line resource)
Common names
LanguageNameAlternate namenoteseqCitation
Englishreed sweet grass  1Huxley, A., ed. 1992. The new Royal Horticultural Society dictionary of gardening
Englishreed-meadow grass  1Huxley, A., ed. 1992. The new Royal Horticultural Society dictionary of gardening
Englishwater-meadow grass  1Integrated Botanical Information System (IBIS). Australian plant common name database (on-line resource).
English (Canada)rough manna grass  Agriculture & Agri-Food Canada official name2Darbyshire, S. J. 2003. Inventory of Canadian Agricultural Weeds Agriculture and Agri-Food Canada. 23.
French (Canada)glycérie aquatique  Agriculture & Agroalimentaire Canada nom officiel2Darbyshire, S. J. 2003. Inventory of Canadian Agricultural Weeds Agriculture and Agri-Food Canada. 23.
Portuguese (Brazil)glicéria-maior  2Groth, D. 2005. pers. comm. Note: re. Brazilian common names
Swedishjättegröe  2Aldén, B., S. Ryman, & M. Hjertson. 2012. Svensk Kulturväxtdatabas, SKUD (Swedish Cultivated and Utility Plants Database; online resource)
Distribution
order_codeStatusContinentSubcontinentCountryStateNoteReference
1NativeAsia-TemperateCaucasusGeorgia  Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource).
1NativeAsia-TemperateSiberiaRussian Federation-Western SiberiaWestern Siberia Tzvelev, N. N. 1976. Zlaki SSSR
1NativeAsia-TemperateWestern AsiaTurkey  Davis, P. H., ed. 1965-1988. Flora of Turkey and the east Aegean islands.
1NativeEuropeEastern EuropeBelarus  Tzvelev, N. N. 1976. Zlaki SSSR
1NativeEuropeEastern EuropeEstonia  Tzvelev, N. N. 1976. Zlaki SSSR
1NativeEuropeEastern EuropeLatvia  Tzvelev, N. N. 1976. Zlaki SSSR
1NativeEuropeEastern EuropeLithuania  Tzvelev, N. N. 1976. Zlaki SSSR
1NativeEuropeEastern EuropeMoldova  Tzvelev, N. N. 1976. Zlaki SSSR
1NativeEuropeEastern EuropeRussian FederationAstrakhan Skvortsov, A. K., ed. 2006. Flora of the Lower Volga region 1:206-207.
1NativeEuropeEastern EuropeRussian FederationKalmykija, Respublika Skvortsov, A. K., ed. 2006. Flora of the Lower Volga region 1:206-207.
1NativeEuropeEastern EuropeRussian FederationSaratov Skvortsov, A. K., ed. 2006. Flora of the Lower Volga region 1:206-207.
1NativeEuropeEastern EuropeRussian FederationVolgogradskaja oblast' Skvortsov, A. K., ed. 2006. Flora of the Lower Volga region 1:206-207.
1NativeEuropeEastern EuropeRussian Federation-European partEuropean part Tzvelev, N. N. 1976. Zlaki SSSR
1NativeEuropeEastern EuropeUkraine  Tzvelev, N. N. 1976. Zlaki SSSR
1NativeEuropeMiddle EuropeAustria  Tutin, T. G. et al., eds. 1964-1980. Flora europaea.
1NativeEuropeMiddle EuropeBelgium  Tutin, T. G. et al., eds. 1964-1980. Flora europaea.
1NativeEuropeMiddle EuropeCzech Republic  Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource).
1NativeEuropeMiddle EuropeGermany  Tutin, T. G. et al., eds. 1964-1980. Flora europaea.
1NativeEuropeMiddle EuropeHungary  Tutin, T. G. et al., eds. 1964-1980. Flora europaea.
1NativeEuropeMiddle EuropeNetherlands  Tutin, T. G. et al., eds. 1964-1980. Flora europaea.
1NativeEuropeMiddle EuropePoland  Tutin, T. G. et al., eds. 1964-1980. Flora europaea.
1NativeEuropeMiddle EuropeSlovakia  Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource).
1NativeEuropeMiddle EuropeSwitzerland  Tutin, T. G. et al., eds. 1964-1980. Flora europaea.
1NativeEuropeNorthern EuropeDenmark  Tutin, T. G. et al., eds. 1964-1980. Flora europaea.
1NativeEuropeNorthern EuropeFinland  Tutin, T. G. et al., eds. 1964-1980. Flora europaea.
1NativeEuropeNorthern EuropeIreland  Tutin, T. G. et al., eds. 1964-1980. Flora europaea.
1NativeEuropeNorthern EuropeNorway  Tutin, T. G. et al., eds. 1964-1980. Flora europaea.
1NativeEuropeNorthern EuropeUnited Kingdom  Tutin, T. G. et al., eds. 1964-1980. Flora europaea.
1NativeEuropeSoutheastern EuropeAlbania  Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource).
1NativeEuropeSoutheastern EuropeBulgaria  Tutin, T. G. et al., eds. 1964-1980. Flora europaea.
1NativeEuropeSoutheastern EuropeCroatia  Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource).
1NativeEuropeSoutheastern EuropeGreece  Tutin, T. G. et al., eds. 1964-1980. Flora europaea.
1NativeEuropeSoutheastern EuropeItaly incl. Sardinia, SicilyTutin, T. G. et al., eds. 1964-1980. Flora europaea.
1NativeEuropeSoutheastern EuropeRomania  Tutin, T. G. et al., eds. 1964-1980. Flora europaea.
1NativeEuropeSoutheastern EuropeSerbia  Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource).
1NativeEuropeSoutheastern EuropeSlovenia  Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource).
1NativeEuropeSouthwestern EuropeFrance  Tutin, T. G. et al., eds. 1964-1980. Flora europaea.
2Cultivated    also cult. 
4NaturalizedAustralasiaAustraliaAustralia  Hnatiuk, R. J. 1990. Census of Australian vascular plants. Australian Flora and Fauna Series No. 11.
4NaturalizedAustralasiaNew ZealandNew Zealand  Howell, C. J. & J. W. D. Sawyer. 2006. New Zealand naturalised vascular plant checklist
4NaturalizedNorthern America Canada  Soreng, R. J. et al. 2003. Catalogue of New World grasses (Poaceae): IV. Subfamily Pooideae. Contr. U.S. Natl. Herb. 48:375.
4NaturalizedNorthern America United States s.e.Soreng, R. J. et al. 2003. Catalogue of New World grasses (Poaceae): IV. Subfamily Pooideae. Contr. U.S. Natl. Herb. 48:375.
Native
Asia-Temperate
  • WESTERN ASIA: Turkey
  • CAUCASUS: Georgia
  • SIBERIA: Russian Federation-Western Siberia [Western Siberia]
Europe
  • NORTHERN EUROPE: Denmark, Finland, United Kingdom, Ireland, Norway
  • MIDDLE EUROPE: Austria, Belgium, Switzerland, Czech Republic, Germany, Hungary, Netherlands, Poland, Slovakia
  • EASTERN EUROPE: Russian Federation-European part [European part], Belarus, Estonia, Lithuania, Latvia, Moldova, Russian Federation [Kalmykija, Respublika, Astrakhan, Saratov, Volgogradskaja oblast'], Ukraine
  • SOUTHEASTERN EUROPE: Albania, Bulgaria, Greece, Croatia, Italy (incl. Sardinia, Sicily), Romania, Serbia, Slovenia
  • SOUTHWESTERN EUROPE: France
Cultivated (also cult.)
Naturalized
Australasia
  • AUSTRALIA: Australia
  • NEW ZEALAND: New Zealand
Northern America
  • REGION: Canada, United States (s.e.)

Reference(s)
  1. Davis, P. H., ed. 1965-1988. Flora of Turkey and the east Aegean islands.
  2. Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource).
  3. Hnatiuk, R. J. 1990. Census of Australian vascular plants. Australian Flora and Fauna Series No. 11.
  4. Howell, C. J. & J. W. D. Sawyer. 2006. New Zealand naturalised vascular plant checklist
  5. Skvortsov, A. K., ed. 2006. Flora of the Lower Volga region 1:206-207.
  6. Soreng, R. J. et al. 2003. Catalogue of New World grasses (Poaceae): IV. Subfamily Pooideae. Contr. U.S. Natl. Herb. 48:375.
  7. Tutin, T. G. et al., eds. 1964-1980. Flora europaea.
  8. Tzvelev, N. N. 1976. Zlaki SSSR
Economic Uses
UsageTypeNoteReference
Animal foodfodder Weber, E. 2003. Invasive plant species of the world: a reference guide to environmental weeds
Environmentalornamental Weber, E. 2003. Invasive plant species of the world: a reference guide to environmental weeds
Environmentalornamental Huxley, A., ed. 1992. The new Royal Horticultural Society dictionary of gardening
Vertebrate poisonsmammals Parsons, W. T. & E. G. Cuthbertson. 1992. Noxious weeds of Australia Inkata Press, Melbourne, Australia.
Vertebrate poisonsmammals Cooper, M. R. & A. W. Johnson. 1998. Poisonous plants and fungi in Britain: animal and human poisoning Note: poisonous
Vertebrate poisonsmammalsdue to presence of smut only in fresh foliageKomarov, V. L. et al., eds. 1963. Flora SSSR. 2:362-364. Note: as Glyceria aquatica
Weedseed contaminantpotentialWeber, E. 2003. Invasive plant species of the world: a reference guide to environmental weeds
Weedseed contaminantpotentialHolm, L. et al. 1979. A geographical atlas of world weeds
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=17680. Accessed 14 May 2026.