1. Family: Poaceae Barnhart
    1. Genus: Aira L.
      1. Aira elegans Willd. ex Roem. & Schult.

        This species is accepted, and its native range is E. Central & S. Europe to N. Iran, NW. Africa.

    [GB]
    Habit
    Annual; caespitose. Culms erect, or geniculately ascending; slender; 10-40 cm long. Ligule an eciliate membrane; 2-3 mm long; acute. Leaf-blades filiform; flat, or convolute; 2-4 cm long; 0.5-1 mm wide. Leaf-blade surface scaberulous; glabrous. Leaf-blade apex obtuse.
    Inflorescences
    Inflorescence a panicle. Panicle open; obovate; effuse; 4-9 cm long; 2-5 cm wide. Primary panicle branches branching dichotomously. Panicle branches capillary; terete; smooth. Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform; terete; 5-13 mm long; 2-5 length of fertile spikelet; tip pyriform.
    Spikelets
    Spikelets comprising 2 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 1.5-2.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes suppressed between florets (florets arising at about the same level). Floret callus pubescent.
    Fertile
    Spikelets comprising 2 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 1.5-2.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes suppressed between florets (florets arising at about the same level). Floret callus pubescent.
    Glume
    Glumes persistent; similar; exceeding apex of florets; thinner than fertile lemma; shiny; gaping. Lower glume ovate; 1.5-2.5 mm long; 1 length of upper glume; membranous; 1-keeled; keeled above; 1 -veined. Lower glume primary vein scaberulous. Lower glume lateral veins absent. Lower glume apex acute. Upper glume ovate; 1.5-2.5 mm long; 1.5 length of adjacent fertile lemma; membranous; 1-keeled; keeled above; 1 -veined. Upper glume primary vein scaberulous. Upper glume lateral veins absent. Upper glume apex acute.
    Florets
    Fertile florets all alike, or with the lowest dissimilar. Lowest fertile lemma muticous, or awned. Fertile lemma ovate; laterally compressed; lanceolate in profile; 1.5 mm long; cartilaginous; without keel; 5 -veined. Lemma lateral veins obscure. Lemma surface scabrous. Lemma margins involute; covering most of palea. Lemma apex dentate; 2 -fid; awned; 1 -awned. Principal lemma awn dorsal; arising 0.3-0.4 way up back of lemma; geniculate; 1.5-2 mm long overall; clearly exserted from spikelet; with twisted column.
    Flowers
    Lodicules 2; lanceolate; membranous. Anthers 3; 0.3-0.5 mm long. Stigmas 2.
    Fruits
    Disseminule comprising a floret.
    Distribution
    Europe: central, southwestern, southeastern, and eastern. Africa: north, Macaronesia, and western Indian ocean. Asia-temperate: Soviet Middle Asia, Caucasus, and western Asia. Australasia: Australia and New Zealand. North America: northwest USA, southwest USA, south-central USA, and southeast USA. South America: Brazil and southern South America.
    Reference
    Aveneae. Gr Maur.

    Images

    Distribution

    Native to:

    Albania, Algeria, Austria, Baleares, Bulgaria, Corse, Cyprus, Czechoslovakia, East Aegean Is., France, Greece, Hungary, Iran, Italy, Kriti, Krym, Lebanon-Syria, Morocco, North Caucasus, Palestine, Romania, Sardegna, Sicilia, Spain, Switzerland, Transcaucasus, Turkey, Turkey-in-Europe, Yugoslavia

    Introduced into:

    Alabama, Argentina Northeast, Argentina Northwest, Brazil South, Canary Is., Chile Central, Germany, Mauritius, New Mexico, New South Wales, New Zealand North, New Zealand South, South Australia, Tasmania, Tennessee, Uruguay, Victoria, Western Australia

    Aira elegans Willd. ex Roem. & Schult. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Adamovic, L. [s.n.], Macedonia Aira elegantissima K000808892

    First published in Syst. Veg., ed. 15 bis 2: 682 (1817)

    Accepted by

    • Bosser, J. & Renvoize, S.A. (2018). Flore des Mascareignes 203: 1-276. IRD Éditions, MSIRI, RBG-Kew, Paris.
    • Dimopoulos, P. & al. (2016). Vascular plants of Greece: An annotated checklist. Supplement Willdenowia 46: 301-347.

    Literature

    Kew Backbone Distributions
    • Bosser, J. & Renvoize, S.A. (2018). Flore des Mascareignes 203: 1-276. IRD Éditions, MSIRI, RBG-Kew, Paris.
    • Bailey, C. & al. (2015). Guide to the Vascular Plants of Tennessee: 1-813. University of Tennessee press.
    • Allred, K.W. (2012). Flora Neomexicana, ed. 2, 1: 1-599. Range Science Herbarium, Las Cruces, New Mexico.
    • Hassler, M. (2012). Flora of Rhodes. Systematic list of flora of Rhodes http://www.rz.uni-karlsruhe.de/~db111/flora/rhodos/list.php.
    • Kral, R., Diamond, A.R., Ginzbarg, S.L., Hansen, C.J., Haynes, R.R., Keener, B.R., Lelong, M.G., Spaulding, D.D. & Woods, M. (2011). Annotated checklist of the vascular plants of Alabama: 1-112. Botanical reseach institute of Texas.
    • Edgar, E & Connor, H.E. (2010). Flora of New Zealand, ed. 2, 5: 1-650. R.E.Owen, Government Printer, Wellington.
    • Dobignard, D. & Chatelain, C. (2010). Index synonymique de la flore d'Afrique du nord 1: 1-455. Éditions des conservatoire et jardin botaniques, Genève.
    • Wilson, A. (ed.) (2009). Flora of Australia 44A: 1-410. Australian Government Publishing Service, Canberra.
    • Zuloaga, F.O., Morrone, O. , Belgrano, M.J., Marticorena, C. & Marchesi, E. (eds.) (2008). Catálogo de las Plantas Vasculares del Cono Sur Monographs in Systematic Botany from the Missouri Botanical Garden 107: 1-3348.
    • Takhtajan, A.L. (ed.) (2006). Conspectus Florae Caucasi 2: 1-466. Editio Universitatis Petropolitanae.
    • Danin, A. (2004). Distribution Atlas of Plants in the Flora Palaestina area: 1-517. The Israel Academy of Sciences and Humanities, Jerusalem.
    • Davis, P.H. (ed.) (1985). Flora of Turkey and the East Aegean Islands 9: 1-724. Edinburgh University Press, Edinburgh.
    • Meikle, R.D. (1985). Flora of Cyprus 2: 833-1970. The Bentham-Moxon Trust Royal Botanic Gardens, Kew.
    • Tutin, T.G. & al. (eds.) (1980). Flora Europaea 5: 1-452. Cambridge University Press.

    Sources

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

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. 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 2020. 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

    Kew Science Photographs
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/