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This species is accepted, and its native range is Canada to U.S.A.

[GB]
Morphology General Habit
Annual. Culms reed-like; 100-300 cm long; spongy. Culm-internodes distally glabrous. Leaf-sheaths glabrous on surface, or pilose; outer margin glabrous. Ligule an eciliate membrane; 3-16 mm long; entire, or erose; truncate. Leaf-blades 20-60 cm long; 3-40 mm wide. Leaf-blade surface glabrous. Leaf-blade margins smooth, or scaberulous.
Morphology Reproductive morphology Inflorescences
Monoecious; with male and female spikelets in the same inflorescence. Inflorescence a panicle. Panicle open; ovate; 24-60 cm long; 20-40 cm wide. Primary panicle branches ascending, or spreading; 3-20 cm long. Sexes segregated; on unisexual branches; with male below. Spikelets solitary. Fertile spikelets pedicelled. Male spikelets pedicelled. Pedicels tip cupuliform.
Fertile
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 8-33 mm long; falling entire.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes both absent or obscure.
Morphology Reproductive morphology Flowers Florets
Fertile florets female. Fertile lemma lanceolate, or oblong; 6-30 mm long; coriaceous; pallid; shiny; without keel; 3 -veined. Lemma surface smooth, or scaberulous; rough in lines. Lemma margins interlocking with palea margins. Lemma apex acuminate; awned; 1 -awned. Principal lemma awn 18-93 mm long overall. Palea 1 length of lemma; 3 -veined; without keels.
Morphology Reproductive morphology Flowers
Lodicules 2. Anthers 6.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp.
Morphology Reproductive morphology Inflorescences Spikelets
Male spikelets distinct from female; linear; 6-17 mm long. Male spikelet glumes absent. Male spikelet lemma 6-17 mm long; muticous, or awned; with 0-2 mm long awn. Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 8-33 mm long; falling entire.
sex Male
Male spikelets distinct from female; linear; 6-17 mm long. Male spikelet glumes absent. Male spikelet lemma 6-17 mm long; muticous, or awned; with 0-2 mm long awn.
Distribution
North America: eastern Canada, northwest USA, north-central USA, and northeast USA.
Reference
Oryzeae. Terrell 2002.

Native to:

Alabama, Arizona, Arkansas, British Columbia, California, Colorado, Connecticut, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Maine, Manitoba, Maryland, Massachusetts, Michigan, Minnesota, Missouri, Montana, Nebraska, New Brunswick, New Hampshire, New York, North Carolina, North Dakota, Nova Scotia, Ohio, Ontario, Oregon, Pennsylvania, Prince Edward I., Québec, Rhode I., Saskatchewan, South Dakota, Tennessee, Vermont, Washington, West Virginia, Wisconsin

Introduced into:

Central European Rus, North Caucasus

Zizania palustris L. appears in other Kew resources:

First published in Mant. Pl. 2: 295 (1771)

Accepted by

  • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
  • Flora of North America Editorial Committee (2007). Flora of North America North of Mexico 24: 1-908. Oxford University Press, New York, Oxford.
  • Seregin, A.P. (2014). Flora of Vladimir Oblast, Russia: grid data analysis: 1-441. KMK schientific press, Moscow.
  • Takhtajan, A.L. (ed.) (2006). Konspekt Flora Kavkaza 2: 1-466. Editio Universitatis Petropolitanae.

Literature

Kew Backbone Distributions

  • Flora of North America Editorial Committee (2007). Flora of North America North of Mexico 24: 1-908. Oxford University Press, New York, Oxford.
  • Seregin, A.P. (2014). Flora of Vladimir Oblast, Russia: grid data analysis: 1-441. KMK schientific press, Moscow.
  • Takhtajan, A.L. (ed.) (2006). Konspekt Flora Kavkaza 2: 1-466. Editio Universitatis Petropolitanae.

GrassBase - The Online World Grass Flora
http://creativecommons.org/licenses/by-nc-sa/3.0

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0