Glyceria R.Br.
  • Prodr. Fl. Nov. Holl.: 179 (1810) 


Notes: Distribution: Temp. & Subtrop.

General Description

HABIT Annual (1), or perennial (45). Rhizomes absent (31), or short (2), or elongated (15). Stolons absent (44), or present (2). Culms erect (18/37), or geniculately ascending (14/37), or decumbent (15/37), or prostrate (3/37); robust (1/2), or weak (1/2); 10-76.9-250 cm long; spongy (2), or firm (44); without nodal roots (2/12), or rooting from lower nodes (12/12). Lateral branches lacking (2/2). Leaf-sheaths tubular for much of their length (33/33). Ligule an eciliate membrane. Leaf-blades membranous (1), or herbaceous (45); stiff (2), or firm (43), or flaccid (1). Leaf-blade midrib conspicuous (1/1). Leaf-blade venation without cross veins (44), or with obscure cross veins (1), or with distinct cross veins (1). Leaf-blade margins cartilaginous (1/1). INFLORESCENCE Inflorescence a panicle; exserted (44), or embraced at base by subtending leaf (4). Panicle open (39), or contracted (7). Spikelets appressed (4/7), or ascending (4/7); solitary. Fertile spikelets sessile (1), or pedicelled (45). Pedicels filiform (1/1). FERTILE SPIKELETS Spikelets comprising 2-7-20 fertile florets; with diminished florets at the apex. Spikelets linear (10), or lanceolate (8), or elliptic (5), or oblong (29), or ovate (10); laterally compressed (42), or subterete (5); 3-12.56-40 mm long; persistent on plant (1), or breaking up at maturity (45); disarticulating below each fertile floret (45/45). Rhachilla internodes glabrous (45), or pubescent (1). Floret callus glabrous (4/4). GLUMES Glumes persistent (45/45); shorter than spikelet; thinner than fertile lemma (1), or similar to fertile lemma in texture (45). Lower glume lanceolate (21), or elliptic (3), or oblong (16), or ovate (12); 0.33-0.6816-0.9 length of upper glume; hyaline (2), or membranous (44); without keels; 1 -veined (42/43), or 3-5 -veined (1/43). Lower glume lateral veins absent (42), or distinct (4). Lower glume surface glabrous (45), or puberulous (1). Lower glume apex entire (43), or erose (4); obtuse (24/42), or acute (21/42). Upper glume lanceolate (19), or elliptic (3), or oblong (19), or ovate (12); 0.25-0.7402-1.3 length of adjacent fertile lemma; hyaline (2), or membranous (44); with undifferentiated margins (34), or hyaline margins (11), or scarious margins (1); without keels; 1 -veined (41/43), or 2 -veined (1/43), or 3 -veined (2/43), or 5 -veined (1/43). Upper glume surface glabrous (45), or puberulous (1). Upper glume apex entire (43), or erose (4); obtuse (26/42), or acute (20/42). FLORETS Fertile lemma lanceolate (6), or elliptic (6), or oblong (24), or ovate (15), or obovate (2), or flabellate (1); membranous (45), or coriaceous (1); of similar consistency above (19), or much thinner above (27); of similar consistency on margins (39), or much thinner on margins (7); without keel (45), or keeled (1); 5-6 -veined (1/40), or 7 -veined (39/40), or 11 -veined (1/40). Lemma lateral veins obscure (3/19), or with distinct primaries but obscure intermediates (2/19), or distinct (2/19), or prominent (12/19); extending close to apex (1/1). Lemma surface smooth (20), or asperulous (4), or scaberulous (18), or scabrous (5), or tuberculate (1); glabrous (45), or puberulous (1). Lemma apex entire (34), or erose (9), or dentate (4); 2 -fid (1/4), or 3 -fid (3/4), or 4-5 -fid (1/4); truncate (1/42), or obtuse (30/42), or acute (11/42), or acuminate (2/42), or attenuate (1/42). Palea 0.9-1.011-1.2 length of lemma; 2 -veined. Palea keels unthickened (45), or thickened (1); wingless (33), or winged (13); smooth (36), or scaberulous (7), or scabrous (3); eciliate (43), or ciliolate (3). Palea surface glabrous (45), or puberulous (1). Palea apex entire (1/14), or erose (1/14), or dentate (13/14). Apical sterile florets resembling fertile though underdeveloped (45), or distinct from fertile (1); 1 in number (1/1); barren (1/1); cuneate (1/1). FLOWER Lodicules 2 (39/39); united (39/39); fleshy (39/39); truncate (39/39). Anthers 2 (5/39), or 3 (35/39). FRUIT Caryopsis with adherent pericarp (43/43); ellipsoid (7/12), or oblong (5/12), or ovoid (1/12); laterally compressed (2/3), or dorsally compressed (1/3); rugose (1/1). Embryo 0.2 length of caryopsis. Hilum linear (36/36); 1 length of caryopsis. DISTRIBUTION Europe (11), or Africa (3), or Temperate Asia (23), or Tropical Asia (4), or Australasia (9), or Pacific (1), or North America (18), or South America (6), or Antarctica (1).

Distribution Map

 
  • Native distribution
  • Introduced distribution
Found in
  • Africa Macaronesia Azores
  • Canary Is.
  • Madeira
  • Northern Africa Algeria
  • Morocco
  • Tunisia
  • Antarctic Subantarctic Islands Tristan da Cunha
  • Asia-Temperate Caucasus North Caucasus
  • Transcaucasus
  • China China North-Central
  • China South-Central
  • China Southeast
  • Inner Mongolia
  • Manchuria
  • Tibet
  • Xinjiang
  • Eastern Asia Japan
  • Korea
  • Nansei-shoto
  • Taiwan
  • Middle Asia Kazakhstan
  • Kirgizistan
  • Tadzhikistan
  • Turkmenistan
  • Uzbekistan
  • Mongolia Mongolia
  • Russian Far East Amur
  • Kamchatka
  • Khabarovsk
  • Kuril Is.
  • Magadan
  • Primorye
  • Sakhalin
  • Siberia Altay
  • Buryatiya
  • Chita
  • Irkutsk
  • Krasnoyarsk
  • Tuva
  • West Siberia
  • Yakutskiya
  • Western Asia Afghanistan
  • East Aegean Is.
  • Iran
  • Iraq
  • Lebanon-Syria
  • Palestine
  • Turkey
  • Asia-Tropical Indian Subcontinent Assam
  • East Himalaya
  • India
  • Nepal
  • Pakistan
  • West Himalaya
  • Indo-China Myanmar
  • Australasia Australia New South Wales
  • South Australia
  • Tasmania
  • Victoria
  • Western Australia
  • Europe Eastern Europe Baltic States
  • Belarus
  • Central European Russia
  • East European Russia
  • Krym
  • North European Russia
  • Northwest European Russia
  • South European Russia
  • Ukraine
  • Middle Europe Austria
  • Belgium
  • Czechoslovakia
  • Germany
  • Hungary
  • Netherlands
  • Poland
  • Switzerland
  • Northern Europe Denmark
  • Finland
  • Føroyar
  • Great Britain
  • Iceland
  • Ireland
  • Norway
  • Sweden
  • Southeastern Europe Albania
  • Bulgaria
  • Greece
  • Italy
  • Romania
  • Sicilia
  • Turkey-in-Europe
  • Yugoslavia
  • Southwestern Europe Corse
  • France
  • Portugal
  • Sardegna
  • Spain
  • Northern America Eastern Canada Labrador
  • New Brunswick
  • Newfoundland
  • Nova Scotia
  • Ontario
  • Prince Edward I.
  • Québec
  • Mexico Mexico Central
  • Mexico Northeast
  • Mexico Northwest
  • North-Central U.S.A. Illinois
  • Iowa
  • Kansas
  • Minnesota
  • Missouri
  • Nebraska
  • North Dakota
  • Oklahoma
  • South Dakota
  • Wisconsin
  • Northeastern U.S.A. Connecticut
  • Indiana
  • Maine
  • Masachusettes
  • Michigan
  • New Hampshire
  • New Jersey
  • New York
  • Ohio
  • Pennsylvania
  • Rhode I.
  • Vermont
  • West Virginia
  • Northwestern U.S.A. Colorado
  • Idaho
  • Montana
  • Oregon
  • Washington
  • Wyoming
  • South-Central U.S.A. New Mexico
  • Texas
  • Southeastern U.S.A. Alabama
  • Arkansas
  • Delaware
  • District of Columbia
  • Florida
  • Georgia
  • Kentucky
  • Louisiana
  • Maryland
  • Mississippi
  • North Carolina
  • South Carolina
  • Tennessee
  • Virginia
  • Southwestern U.S.A. Arizona
  • California
  • Nevada
  • Utah
  • Subarctic America Alaska
  • Northwest Territories
  • Yukon
  • Western Canada Alberta
  • British Columbia
  • Manitoba
  • Saskatchewan
  • Southern America Brazil Brazil South
  • Central America Guatemala
  • Southern South America Argentina Northeast
  • Argentina Northwest
  • Argentina South
  • Chile Central
  • Chile South
  • Uruguay
  • Western South America Colombia
Introduced into
  • Australasia Australia Queensland
  • New Zealand Chatham Is.
  • New Zealand North
  • New Zealand South
  • Northern America Mexico Mexico Southwest
  • Pacific North-Central Pacific Hawaii
  • Southern America Central America Costa Rica
  • Western South America Ecuador
  • Peru

  Bibliography

  • 1 Govaerts, R.H.A. (2011). World checklist of selected plant families published update. Facilitated by the Trustees of the Royal Botanic Gardens, Kew.

 Information From

GrassBase - The Online World Grass Flora
http://www.kew.org/data/grasses-db/
Clayton, W.D., Vorontsova, M.S., Harman, K.T. and Williamson, H. (2006 onwards). GrassBase - The Online World Grass Flora. http://www.kew.org/data/grasses-db.html. [accessed 24 January 2012; 14:30 GMT]
  • A © Copyright The Board of Trustees, Royal Botanic Gardens, Kew.
eMonocot
http://e-monocot.org
eMonocot. (2010, 1st November). Retrieved Wednesday, 8th February, 2012, from http://e-monocot.org.
  • B Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
World Checklist of Selected Plant Families
http://apps.kew.org/wcsp/
WCSP 2014. 'World Checklist of Selected Plant Families. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet; http://apps.kew.org/wcsp/ Retrieved 2011 onwards
  • C See http://kew.org/about-kew/website-information/legal-notices/index.htm You may use data on these Terms and Conditions and on further condition that: The data is not used for commercial purposes; You may copy and retain data solely for scholarly, educational or research purposes; You may not publish our data, except for small extracts provided for illustrative purposes and duly acknowledged; You acknowledge the source of the data by the words "With the permission of the Trustees of the Royal Botanic Gardens, Kew" in a position which is reasonably prominent in view of your use of the data; Any other use of data or any other content from this website may only be made with our prior written agreement.