1. Family: Poaceae Barnhart
    1. Gastridium P.Beauv.

      1. This genus is accepted, and its native range is Macaronesia, W. Europe to Medit. and Iran, Eritrea to S. Africa.

    [GB]

    nonem

    Habit
    Annual. Culms erect, or decumbent; 10-35-60 cm long. Ligule an eciliate membrane.
    Inflorescences
    Inflorescence a panicle. Panicle spiciform. Spikelets solitary. Fertile spikelets pedicelled. Pedicels linear; tip pyriform.
    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.
    Fertile
    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.
    Glume
    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.
    Flowers
    Anthers 3.
    Fruits
    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).
    [FTEA]

    Gramineae, W. D. Clayton, S. M. Phillips And S. A. Renvoize. Flora of Tropical East Africa. 1974

    Habit
    Slender annuals
    Leaves
    Leaf-blades flat
    Inflorescences
    Panicle contracted or spike-like
    Spikelets
    Spikelets narrowly oblong to oblong, laterally compressed, awned or awnless; rhachilla produced as a minute point or bristle, or not produced, disarticulating above the glumes; glumes persistent, slightly to very unequal, becoming ± swollen and rounded on the back near the base, keeled above, 1-nerved, membranous throughout or usually hardened near the base, acute or acutely acuminate; lemma much shorter than the glumes, broad, ± truncate, thin, 5-nerved, awned from the back in the upper third or awnless; palea about as long as the lemma.

    Images

    Distribution

    Native to:

    Albania, Algeria, Angola, Azores, Baleares, Bulgaria, Canary Is., Cape Verde, Corse, Cyprus, Djibouti, East Aegean Is., Egypt, Eritrea, Ethiopia, France, Free State, Great Britain, Greece, Gulf States, Iran, Iraq, Italy, Kenya, Kriti, KwaZulu-Natal, Lebanon-Syria, Lesotho, Libya, Madeira, Malawi, Morocco, Namibia, North Caucasus, Northern Provinces, Oman, Palestine, Portugal, Romania, Rwanda, Sardegna, Saudi Arabia, Selvagens, Sicilia, Socotra, Spain, Sudan, Swaziland, Tanzania, Transcaucasus, Tunisia, Turkey, Turkey-in-Europe, Uganda, Yemen, Yugoslavia, Zambia, Zaïre, Zimbabwe

    Introduced into:

    Arizona, Austria, British Columbia, California, Cape Provinces, Chile Central, Chile North, Chile South, Czechoslovakia, Desventurados Is., Easter Is., Hawaii, Juan Fernández Is., Maine, Masachusettes, Mexico Northwest, Mississippi, New South Wales, New Zealand North, New Zealand South, Oregon, Peru, South Australia, Tasmania, Texas, Victoria, Western Australia

    Gastridium P.Beauv. appears in other Kew resources:

    First published in Ess. Agrostogr.: 21 (1812)

    Accepted by

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

    Literature

    Flora of Tropical East Africa
    • Ess. Agrost.: 21 (1812)

    Sources

    Flora of Tropical East Africa
    Flora of Tropical East Africa
    http://creativecommons.org/licenses/by-nc-sa/3.0

    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 2018. 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 2018. 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