1. Family: Poaceae Barnhart
    1. Genus: Tetrarrhena R.Br.
      1. Tetrarrhena oreophila D.I.Morris

        This species is accepted, and its native range is Tasmania.

    [GB]
    Habit
    Perennial. Stolons present. Culms decumbent; slender; 15-17 cm long. Leaf-sheath oral hairs ciliate. Ligule an eciliate membrane; 1 mm long; lacerate. Leaf-blades filiform; involute; 5-7 cm long; 0.5 mm wide.
    Inflorescences
    Inflorescence composed of racemes. Racemes 1; single; unilateral; 1.5-3 cm long; bearing few fertile spikelets; bearing 6-10 fertile spikelets on each. Rhachis angular. Spikelets solitary. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 2 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 5 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 2 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 5 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes persistent; similar; shorter than spikelet; thinner than fertile lemma. Lower glume elliptic; 1.5 mm long; 0.66 length of upper glume; hyaline; without keels. Lower glume apex acute. Upper glume oblong; 1.4-2.4 mm long; 0.4 length of spikelet; hyaline; without keels; 1 -veined. Upper glume lateral veins absent. Upper glume apex obtuse.
    Florets
    Basal sterile florets dissimilar; barren; without significant palea; attached to and deciduous with the fertile. Lemma of lower sterile floret oblong; 3 mm long; 0.66 length of spikelet; coriaceous; 1-keeled; 5 -veined; acute; mucronate. Lemma of upper sterile floret elliptic; 5 mm long; 1.5 length of lower sterile floret; coriaceous; acuminate; mucronate. Fertile lemma elliptic; 4 mm long; coriaceous; keeled. Lemma apex acute.
    Flowers
    Lodicules 2; membranous. Anthers 2; 1.5 mm long.
    Distribution
    Australasia: Australia.
    Reference
    Ehrharteae. WDC 1997.

    Images

    Distribution

    Native to:

    Tasmania

    Tetrarrhena oreophila D.I.Morris appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Curtis, W.M. [118], Tasmania Ehrharta oreophila var. minor K000848992 isotype

    First published in Rec. Queen Victoria Mus. 55: 4 (1977)

    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 Ehrharta oreophila.]

    Literature

    Kew Backbone Distributions
    • Wilson, A. (ed.) (2009). Flora of Australia 44A: 1-410. Australian Government Publishing Service, Canberra.

    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