1. Family: Poaceae Barnhart
    1. Genus: Panicum L.
      1. Panicum australiense Domin

        This species is accepted, and its native range is N. & Central Australia.

    [GB]
    Habit
    Annual, or perennial. Culms erect; 5-30 cm long; 5-10 -noded. Lateral branches ample. Ligule a fringe of hairs; 0.5-2 mm long. Leaf-blades flat, or involute; 3-10 cm long; 1-4 mm wide.
    Inflorescences
    Inflorescence a panicle; terminal and axillary; shorter than basal leaves; embraced at base by subtending leaf. Panicle open, or contracted; elliptic; 2-5 cm long. Primary panicle branches 0.5-2 cm long; bearing 2-5 fertile spikelets on each lower branch. Panicle branches scabrous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 1-6 mm long.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic, or oblong; dorsally compressed; 3.2-4.5 mm long; 1-1.4 mm wide; falling entire; readily shedding fertile florets. Rhachilla internodes elongated between glumes. Floret callus evident; winged; with free apical wings; truncate.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic, or oblong; dorsally compressed; 3.2-4.5 mm long; 1-1.4 mm wide; falling entire; readily shedding fertile florets. Rhachilla internodes elongated between glumes. Floret callus evident; winged; with free apical wings; truncate.
    Glume
    Glumes dissimilar; reaching apex of florets, or shorter than spikelet; thinner than fertile lemma. Lower glume elliptic, or ovate; 1.6-2.8 mm long; 0.5-0.6 length of spikelet; membranous; without keels; 3-5 -veined. Lower glume apex acute, or acuminate. Upper glume elliptic, or oblong; 3-4.3 mm long; 0.95-1 length of spikelet; membranous; without keels; 7 -veined. Upper glume apex acuminate.
    Florets
    Basal sterile florets barren; without significant palea. Lemma of lower sterile floret similar to upper glume; elliptic, or oblong; 1 length of spikelet; membranous; 7 -veined; acuminate. Fertile lemma elliptic, or ovate; 2.3-2.8 mm long; indurate; without keel. Lemma margins involute. Lemma apex obtuse, or acute. Palea involute; 1 length of lemma; indurate. Palea apex obtuse.
    Flowers
    Anthers 3; 1-1.5 mm long.
    Distribution
    Australasia: Australia.
    Reference
    Paniceae. Webster.

    Images

    Distribution

    Native to:

    Northern Territory, Queensland, Western Australia

    Panicum australiense Domin appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Clement, E. [s.n.], Western Australia Yakirra australiensis K000215156 Unknown type material
    Clement, E. [s.n.], Western Australia Yakirra australiensis K000215157
    Stewart, J.M. [s.n.] Yakirra australiensis K000958831
    Mueller, F.J.H. von [s.n.], Northern Territory Yakirra australiensis K000215155 lectotype
    Giles, W.E.P. [s.n.], Northern Territory Yakirra australiensis K000958832

    First published in J. Linn. Soc., Bot. 41: 271 (1912)

    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 Yakirra australiensis.]

    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