1. Family: Poaceae Barnhart
    1. Genus: Macrochloa Kunth
      1. Macrochloa tenacissima (L.) Kunth

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

    [GB]
    Habit
    Annual; caespitose. Culms 60-150(-200) cm long. Leaf-sheath oral hairs woolly. Leaf-sheath auricles erect; 10-12 mm long. Ligule a ciliate membrane. Leaf-blades convolute; 30-120 cm long; 1-3 mm wide. Leaf-blade venation with continuous uniform subepidermal sclerenchyma layer on the underside. Leaf-blade surface pubescent; hairy adaxially.
    Inflorescences
    Inflorescence a panicle. Peduncle antrorsely scabrous above. Panicle contracted; lanceolate; 25-35 cm long. Primary panicle branches 3-6 -nate. Panicle branches scaberulous; bearded in axils. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 25-30 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; 1-1.5 mm long; pilose; acute.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 25-30 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; 1-1.5 mm long; pilose; acute.
    Glume
    Glumes persistent; similar; exceeding apex of florets; thinner than fertile lemma. Lower glume lanceolate; 25-30 mm long; 1.1 length of upper glume; membranous; without keels; 3 -veined. Lower glume apex attenuate. Upper glume lanceolate; 22-25 mm long; 2.5-3 length of adjacent fertile lemma; membranous; without keels; 3-5 -veined. Upper glume apex attenuate.
    Florets
    Fertile lemma lanceolate; subterete; 10 mm long; scarious; without keel; 5 -veined. Lemma surface villous. Lemma margins convolute; covering most of palea. Lemma apex dentate; 2 -fid; awned; 1 -awned. Principal lemma awn from a sinus; geniculate; 40-60 mm long overall; with twisted column. Column of lemma awn 20-25 mm long; hirsute; with 4-6 mm long hairs. Palea linear; 1 length of lemma; scarious; 2 -veined; without keels. Palea surface villous. Palea apex acuminate.
    Flowers
    Lodicules 2; membranous. Anthers 3; 10-15 mm long; anther tip penicillate. Stigmas 2. Ovary glabrous.
    Fruits
    Caryopsis with adherent pericarp; oblong; 7-8 mm long. Embryo 0.15 length of caryopsis. Hilum linear; 1 length of caryopsis.
    Distribution
    Europe: southwestern. Africa: north and Macaronesia.
    Reference
    Stipeae. Fl Afr N.

    Distribution

    Native to:

    Algeria, Baleares, Libya, Morocco, Portugal, Spain, Tunisia

    Introduced into:

    Canary Is., Cyprus

    Macrochloa tenacissima (L.) Kunth appears in other Kew resources:

    First published in Révis. Gramin. 1: 59 (1829)

    Not accepted by

    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew. [Cited as Stipa tenacissima.]

    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.
    • 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

    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