1. Family: Poaceae Barnhart
    1. Astrebla F.Muell.

      1. This genus is accepted, and its native range is Australia.

    [GB]

    nonem

    Habit
    Perennial. Rhizomes absent (1), or short (3). Culms erect, or geniculately ascending (1), or decumbent (1); 20-78.75-150 cm long. Ligule a ciliolate membrane (1), or a fringe of hairs (3).
    Inflorescences
    Inflorescence composed of racemes; exserted (2), or embraced at base by subtending leaf (2). Racemes single, or paired (1); unilateral. Rhachis flattened. Spikelet packing broadside to rhachis; crowded (1), or contiguous (1), or lax (2); 2 -rowed. Spikelets appressed (1/2), or pectinate (1/2); solitary. Fertile spikelets sessile (2), or pedicelled (3). Pedicels oblong (3/3).
    Spikelets
    Spikelets comprising 1 fertile florets (1), or 2 fertile florets (3), or 3 fertile florets (2), or 4 fertile florets (3), or 5-6 fertile florets (1); with diminished florets at the apex. Spikelets elliptic (1), or oblong (2), or ovate (1); laterally compressed (3), or subterete (1); 7-12-20 mm long; breaking up at maturity; disarticulating above glumes but not between florets. Floret callus pubescent (1/2), or pilose (1/2).
    Fertile
    Spikelets comprising 1 fertile florets (1), or 2 fertile florets (3), or 3 fertile florets (2), or 4 fertile florets (3), or 5-6 fertile florets (1); with diminished florets at the apex. Spikelets elliptic (1), or oblong (2), or ovate (1); laterally compressed (3), or subterete (1); 7-12-20 mm long; breaking up at maturity; disarticulating above glumes but not between florets. Floret callus pubescent (1/2), or pilose (1/2).
    Glume
    Glumes persistent; shorter than spikelet (3), or reaching apex of florets (1); thinner than fertile lemma. Lower glume linear (1), or lanceolate, or ovate (1); 0.5-0.765-1 length of upper glume; membranous (1), or chartaceous (2), or scarious (1); without keels (1), or 1-keeled (3); 1 -veined (3), or 2-4 -veined (2), or 5 -veined (3), or 6-9 -veined (1). Lower glume lateral veins absent (1), or distinct (3). Lower glume apex acute (1), or acuminate (3); muticous (3), or mucronate (1). Upper glume lanceolate (2), or elliptic (1), or ovate (2); 0.66-0.9763-1.2 length of adjacent fertile lemma; membranous (1), or chartaceous (2), or scarious (1); with undifferentiated margins (3), or membranous margins (1); without keels; 7-8 -veined (3), or 9-11 -veined, or 12-13 -veined (2), or 14-16 -veined (1). Upper glume apex acute (1), or acuminate (3); muticous (3), or mucronate (1).
    Florets
    Fertile lemma lanceolate (1), or oblong (3); coriaceous; much thinner above; without keel; 3 -veined. Lemma surface pubescent (2), or villous (2). Lemma apex lobed; 3 -fid; incised 0.25-0.5188-0.8 of lemma length; awned; 1 -awned (3), or 3 -awned (1). Principal lemma awn straight (3), or hooked (1). Lateral lemma awns shorter than principal (1/1). Palea 0.6-0.65-0.7 length of lemma. Palea keels pubescent (1), or ciliate (3). Palea apex lobed (1/1). Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2 (3/3); fleshy (3/3); truncate (3/3). Anthers 3.
    Fruits
    Caryopsis with adherent pericarp (3/3); ellipsoid (1/2), or oblong (1/2); dorsally compressed (1/1).
    Distribution
    Australasia.

    Images

    Distribution

    Native to:

    New South Wales, Northern Territory, Queensland, South Australia, Western Australia

    Astrebla F.Muell. appears in other Kew resources:

    First published in Fragm. 10: 76 (1876)

    Accepted by

    • Govaerts, R. (1995). World Checklist of Seed Plants 1(1, 2): 1-483, 1-529. MIM, Deurne.

    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 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