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  1. Family: Poaceae Barnhart
    1. Genus: Urochloa P.Beauv.
      1. Urochloa argentea (R.Br.) Hughes

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

    [GB]
    Habit
    Annual; caespitose. Culms 20-40 cm long; 4-8 -noded. Leaf-sheaths pubescent; outer margin hairy. Ligule a fringe of hairs. Leaf-blades 1.5-4 cm long; 1.5-4.5 mm wide. Leaf-blade surface pubescent; hairy on both sides. Leaf-blade margins cartilaginous; serrulate. Leaf-blade apex abruptly acute.
    Inflorescences
    Inflorescence composed of racemes. Racemes 3-6; borne along a central axis; unilateral; 1-3 cm long. Central inflorescence axis 4-8 cm long. Rhachis wingless; subterete. Spikelet packing adaxial; distant; regular; 1 -rowed. Spikelets solitary. Fertile spikelets pedicelled. Pedicels linear; terete; 0.7-1.8 mm long; pubescent; tip oblique.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets obovate; dorsally compressed; compressed slightly; obtuse; 2 mm long; with hairs extending 0 mm beyond apex; falling entire. Spikelet callus linear; 0.5-0.7 mm long; base pungent.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets obovate; dorsally compressed; compressed slightly; obtuse; 2 mm long; with hairs extending 0 mm beyond apex; falling entire. Spikelet callus linear; 0.5-0.7 mm long; base pungent.
    Glume
    Glumes dissimilar; reaching apex of florets; thinner than fertile lemma. Lower glume lanceolate; 1.5 mm long; 0.33-0.5 length of spikelet; membranous; without keels; 5 -veined. Lower glume surface pubescent. Lower glume apex acute. Upper glume obovate; 1 length of spikelet; membranous; without keels; 7 -veined. Upper glume surface pubescent; with a transverse fringe of hair. Upper glume hairs 0.5 mm long. Upper glume apex obtuse.
    Florets
    Basal sterile florets male; with palea. Lemma of lower sterile floret similar to upper glume; obovate; 1 length of spikelet; membranous; 5 -veined; pubescent; with a transverse fringe of hair; bearing hairs 0.5 mm long; obtuse. Fertile lemma elliptic; 2 mm long; indurate; without keel. Lemma surface striate. Lemma margins involute. Lemma apex acute. Palea involute; indurate; without keels.
    Distribution
    Australasia: Australia.
    Reference
    Paniceae. WDC.

    Images

    Distribution

    Native to:

    Northern Territory, Queensland, Western Australia

    Synonyms

    Other Data

    Urochloa argentea (R.Br.) Hughes appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Brown, R. [s.n.], Australia Brachiaria argentea K000958888
    Brown, R. [s.n.], Australia Brachiaria argentea K000958889
    Brown, R. [6095], Australia Brachiaria argentea K000958890 Unknown type material
    Brown, R. [s.n.], Australia Brachiaria argentea K000958891

    Bibliography

    First published in Bull. Misc. Inform. Kew 1923: 315 (1923)

    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 Brachiaria argentea.]

    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