Gastridium P.Beauv.
  • Ess. Agrostogr.: 21 (1812) 


Notes: Distribution: Macaronesia, W. Europe to Medit. and Iran, Eritrea to S. Africa

General Description

HABIT Annual. Culms erect, or decumbent; 10-35-60 cm long. Ligule an eciliate membrane. INFLORESCENCE Inflorescence a panicle. Panicle spiciform. Spikelets solitary. Fertile spikelets pedicelled. Pedicels linear; tip pyriform. FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension (1), or with a barren rhachilla extension (1). Spikelets oblong; laterally compressed; 3-5.075-7.5 mm long; breaking up at maturity; disarticulating below each fertile floret. GLUMES Glumes persistent; exceeding apex of florets; firmer than fertile lemma. Lower glume lanceolate; saccate; 1.1-1.3-1.5 length of upper glume; membranous (1), or scarious (1); 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute (1), or acuminate (1). Upper glume lanceolate; saccate; 2-2.75-3 length of adjacent fertile lemma; membranous (1), or scarious (1); 1-keeled; 1 -veined. Upper glume apex acuminate (1), or attenuate (1). FLORETS Fertile lemma oblong (1), or orbicular (1); cartilaginous; without keel; 5 -veined. Lemma surface glabrous (1), or pubescent. Lemma apex erose; truncate; muticous (1), or awned; 1 -awned. Principal lemma awn dorsal; geniculate. Palea 1 length of lemma; cartilaginous; 2 -veined. FLOWER Anthers 3. FRUIT Caryopsis with adherent pericarp. Hilum punctiform. DISTRIBUTION Europe, or Africa, or Temperate Asia, or Australasia, or Pacific, or North America (1), or South America (1).

Distribution Map

 
  • Native distribution
  • Introduced distribution
Found in
  • Africa East Tropical Africa Kenya
  • Tanzania
  • Uganda
  • Macaronesia Azores
  • Canary Is.
  • Cape Verde
  • Madeira
  • Selvagens
  • Northeast Tropical Africa Djibouti
  • Eritrea
  • Ethiopia
  • Socotra
  • Sudan
  • Northern Africa Algeria
  • Egypt
  • Libya
  • Morocco
  • Tunisia
  • South Tropical Africa Angola
  • Malawi
  • Zambia
  • Zimbabwe
  • Southern Africa Free State
  • KwaZulu-Natal
  • Lesotho
  • Namibia
  • Northern Provinces
  • Swaziland
  • West-Central Tropical Africa Rwanda
  • Zaire
  • Asia-Temperate Arabian Peninsula Gulf States
  • Oman
  • Saudi Arabia
  • Yemen
  • Caucasus North Caucasus
  • Transcaucasus
  • Western Asia Cyprus
  • East Aegean Is.
  • Iran
  • Iraq
  • Lebanon-Syria
  • Palestine
  • Turkey
  • Europe Northern Europe Great Britain
  • Southeastern Europe Albania
  • Bulgaria
  • Greece
  • Italy
  • Kriti
  • Romania
  • Sicilia
  • Turkey-in-Europe
  • Yugoslavia
  • Southwestern Europe Baleares
  • Corse
  • France
  • Portugal
  • Sardegna
  • Spain
Introduced into
  • Africa Southern Africa Cape Provinces
  • Australasia Australia New South Wales
  • South Australia
  • Tasmania
  • Victoria
  • Western Australia
  • New Zealand New Zealand North
  • New Zealand South
  • Europe Middle Europe Czechoslovakia
  • Northern America Mexico Mexico Northwest
  • Northeastern U.S.A. Maine
  • Masachusettes
  • Northwestern U.S.A. Oregon
  • South-Central U.S.A. Texas
  • Southeastern U.S.A. Mississippi
  • Southwestern U.S.A. Arizona
  • California
  • Western Canada British Columbia
  • Pacific North-Central Pacific Hawaii
  • South-Central Pacific Easter Is.
  • Southern America Southern South America Chile Central
  • Chile North
  • Chile South
  • Desventurados Is.
  • Juan Fernández Is.
  • Western South America 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.