1. Family: Poaceae Barnhart
    1. Genus: Aira L.
      1. Aira provincialis Jord.

        This species is accepted, and its native range is SE. France, Corse.

    [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; 2-5 length of fertile spikelet; tip widened (gradually).
    Spikelets
    Spikelets comprising 2 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 3.5 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; 3.5 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; 3.5 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; 3.5 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 with the lowest dissimilar. Lowest fertile lemma muticous, or awned (shorter than upper). Fertile lemma ovate; laterally compressed; lanceolate in profile; 2.5 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 0.25 way up back of lemma; geniculate; 2.5 mm long overall; clearly exserted from spikelet (upper), or not or scarcely exserted from spikelet (lower); with twisted column. Palea 0.7 length of lemma.
    Flowers
    Lodicules 2; lanceolate; membranous. Anthers 3. Stigmas 2.
    Fruits
    Disseminule comprising a floret.
    Distribution
    Europe: southwestern. Australasia: Australia.
    Reference
    Aveneae. Fl Eur 1993.

    Images

    Distribution

    Native to:

    Corse, France

    Introduced into:

    New South Wales

    Aira provincialis Jord. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jordan, C.T.A. [s.n.], France K000808888

    First published in Mém. Acad. Sci. Lyon, Sect. Sci. 1: 142 (1852)

    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.
    • Wilson, A. (ed.) (2009). Flora of Australia 44A: 1-410. Australian Government Publishing Service, Canberra.
    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Tutin, T.G. & al. (eds.) (1980). Flora Europaea 5: 1-452. Cambridge University Press.

    Literature

    Kew Backbone Distributions
    • Wilson, A. (ed.) (2009). Flora of Australia 44A: 1-410. Australian Government Publishing Service, Canberra.
    • 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