1. Family: Poaceae Barnhart
    1. Genus: Cenchrus L.
      1. Cenchrus robustus R.D.Webster

        This species is accepted, and its native range is Queensland to ENE. New South Wales.

    [GB]
    Habit
    Perennial. Cataphylls evident. Rhizomes short. Culms erect; 40-100 cm long; 10-20 -noded. Culm-nodes glabrous. Leaf-sheaths smooth; glabrous on surface; outer margin glabrous, or hairy. Ligule a fringe of hairs; 1-1.5 mm long. Collar glabrous. Leaf-blades 6-22 cm long; 3-7 mm wide. Leaf-blade surface scabrous; glabrous. Leaf-blade margins scabrous; glabrous.
    Inflorescences
    Inflorescence a panicle. Panicle spiciform; linear; 4-8 cm long. Primary panicle branches accrescent to a central axis; with sessile scars on axis. Panicle axis angular; scabrous; bearing deciduous spikelet clusters. Spikelets subtended by an involucre. Fertile spikelets sessile; 1-2 in the cluster. Involucre composed of bristles; connate into a disc below; with 0.5 mm connate; elliptic; 9-13 mm long; base bluntly stipitate. Involucral bristles deciduous with the fertile spikelets; numerous; in one whorl; 45-60 in principal whorl; 9-13 mm long; terete; rigid; retrorsely scaberulous; pubescent (below); spinose.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; acuminate; 7.3-9 mm long; 1.5-1.9 mm wide; falling entire; deciduous with accessory branch structures.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; acuminate; 7.3-9 mm long; 1.5-1.9 mm wide; falling entire; deciduous with accessory branch structures.
    Glume
    Glumes shorter than spikelet; thinner than fertile lemma. Lower glume ovate; 0.9-1.1 mm long; 0.15 length of spikelet; hyaline, or membranous; without keels; (0-)1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume ovate; 2.8-4.1 mm long; 0.33-0.55 length of spikelet; membranous; without keels; 1-3 -veined. Upper glume lateral veins absent, or obscure. Upper glume surface asperulous. Upper glume apex acute.
    Florets
    Basal sterile florets barren; with palea. Lemma of lower sterile floret lanceolate; 7.3-9 mm long; 1 length of spikelet; membranous; 5 -veined; distinctly veined; smooth, or scaberulous; rough on veins; acute. Fertile lemma lanceolate; 7.5-9 mm long; coriaceous; much thinner on margins; without keel. Lemma margins flat. Lemma apex acuminate. Palea coriaceous.
    Flowers
    Anthers 2.9-3.5 mm long.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    Australasia: Australia.
    Reference
    Paniceae. Webster 1996.

    Distribution

    Native to:

    New South Wales, Queensland

    Cenchrus robustus R.D.Webster appears in other Kew resources:

    First published in Austral. Paniceae: 27 (1987)

    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.

    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 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