1. Family: Poaceae Barnhart
    1. Genus: Aira L.
      1. Aira tenorei Guss.

        This species is accepted, and its native range is W. & Central Medit.

    [GB]
    Habit
    Annual. Culms erect, or geniculately ascending; slender; 10-40 cm long; 2-3 -noded. Leaves mostly basal. Leaf-sheaths scaberulous. Ligule an eciliate membrane; 2-3 mm long; acute. Leaf-blades flat, or involute; 2-4 cm long; 0.4-0.8 mm wide.
    Inflorescences
    Inflorescence a panicle. Panicle open; ovate, or globose; effuse; 4-9 cm long; 2-5 cm wide. Primary panicle branches branching divaricately. Panicle branches capillary. Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform; terete; 5-8 length of fertile spikelet.
    Spikelets
    Spikelets comprising 2 fertile florets; without rhachilla extension. Spikelets oblong to ovate; laterally compressed; 1.5-3 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 to ovate; laterally compressed; 1.5-3 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; 1.5-3 mm long; 1 length of upper glume; membranous; 1-keeled; keeled above; 1-3 -veined. Lower glume primary vein scaberulous. Lower glume apex entire, or erose; obtuse; muticous, or mucronate. Upper glume ovate; 1.5-3 mm long; 1.5 length of adjacent fertile lemma; membranous; 1-keeled; keeled above; 1-3 -veined. Upper glume primary vein scaberulous. Upper glume apex obtuse; muticous, or mucronate.
    Florets
    Fertile lemma ovate; laterally compressed; lanceolate in profile; 1.2-2.5 mm long; cartilaginous; dark brown; without keel; 5 -veined. Lemma lateral veins obscure. Lemma surface scaberulous; rough above. Lemma margins involute; covering most of palea. Lemma apex dentate; 2 -fid; muticous, or awned; 1 -awned. Principal lemma awn dorsal; arising 0.25 way up back of lemma; geniculate; 2-3 mm long overall; with twisted column. Palea elliptic; 0.7 length of lemma; cartilaginous; 2 -veined. Palea apex obtuse.
    Flowers
    Lodicules 2; lanceolate; membranous. Anthers 3; 0.7-1.7 mm long. Stigmas 2; protandrous; laterally exserted.
    Fruits
    Caryopsis with adherent pericarp; fusiform; isodiametric; biconvex; estipitate; without sulcus; 1 mm long; smooth; apex unappendaged. Embryo 0.2 length of caryopsis. Hilum punctiform. Endosperm farinose. Disseminule comprising a floret.
    Distribution
    Europe: southwestern and southeastern. Africa: north.
    Reference
    Aveneae. Fl Eur 1993.

    Images

    Distribution

    Native to:

    Algeria, Baleares, Corse, France, Italy, Libya, Morocco, Sardegna, Sicilia, Spain, Tunisia

    Aira tenorei Guss. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Tenore, M. [s.n.], Italy K000808890
    Gussone, G. [s.n.], Sicilia K000808891
    Tineo, V. [s.n.], Sicilia K000808889

    First published in Fl. Sicul. Prodr. 1: 62 (1827)

    Accepted by

    • Dimopoulos, P., Raus, T., Bergmeier, E., Constantinidis, T., Iatrou, G., Kokkini, S., Strid, A., & Tzanoudakis, D. (2013). Vascular plants of Greece. An annotated checklist: 1-372. Botanic gardens and botanical museum Berlin-Dahlem, Berlin and Hellenic botanical society, Athens.
    • Dobignard, D. & Chatelain, C. (2010). Index synonymique de la flore d'Afrique du nord 1: 1-455. Éditions des conservatoire et jardin botaniques, Genève.
    • Govaerts, R. (1995). World Checklist of Seed Plants 1(1, 2): 1-483, 1-529. MIM, Deurne.
    • Tutin, T.G. & al. (eds.) (1980). Flora Europaea 5: 1-452. Cambridge University Press.

    Literature

    Kew Backbone Distributions
    • Dobignard, D. & Chatelain, C. (2010). Index synonymique de la flore d'Afrique du nord 1: 1-455. Éditions des conservatoire et jardin botaniques, Genève.
    • 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 2019. 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 2019. 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