1. Family: Poaceae Barnhart
    1. Genus: Aristida L.
      1. Aristida dominii B.K.Simon

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

    [GB]
    Habit
    Annual; caespitose. Culms erect; 13-50 cm long. Culm-internodes smooth; distally glabrous. Lateral branches lacking, or sparse. Leaf-sheaths smooth, or scaberulous; glabrous on surface. Leaf-sheath oral hairs ciliate; 3 mm long. Ligule a fringe of hairs; 0.3-1 mm long. Leaf-blades flexuous; filiform; involute; 8-16 cm long; 0.5 mm wide. Leaf-blade surface scaberulous, or scabrous; rough abaxially; glabrous, or pilose; hairy adaxially.
    Inflorescences
    Inflorescence a panicle. Panicle open, or contracted; linear; 12-17 cm long; 1.2 cm wide. Primary panicle branches 2 -nate; 2-3 cm long. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; compressed slightly; 17-21 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; 1.5-2 mm long; pubescent; pungent. Floret callus hairs 0.2-1 mm long.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; compressed slightly; 17-21 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; 1.5-2 mm long; pubescent; pungent. Floret callus hairs 0.2-1 mm long.
    Glume
    Glumes persistent; similar; exceeding apex of florets; thinner than fertile lemma. Lower glume lanceolate; 6-10 mm long; 0.4-0.5 length of upper glume; membranous; 1-keeled; 3 -veined. Lower glume surface smooth to scabrous. Lower glume apex emarginate, or obtuse; awned; 1 -awned. Lower glume awn 1-2 mm long. Upper glume lanceolate; 17-21 mm long; 2.3-3 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume apex emarginate, or obtuse; awned; 1 -awned. Upper glume awn 1-2 mm long.
    Florets
    Fertile lemma lanceolate; laterally compressed; 5.1-9 mm long; coriaceous; without keel; 3 -veined. Lemma surface scaberulous; rough above. Lemma margins convolute; covering most of palea. Lemma apex acute; awned; 3 -awned. Principal lemma awn 3-branched; spreading; with 38-64 mm long limb; with twisted column; deciduous; abscissing from top of lemma. Column of lemma awn 10-23 mm long; pubescent. Lateral lemma awns 20-41 mm long; shorter than principal. Palea 0.2 length of lemma; without keels.
    Flowers
    Anthers 3.
    Fruits
    Caryopsis with adherent pericarp; 4.5-5.5 mm long. Hilum linear; 0.75 length of caryopsis.
    Distribution
    Australasia: Australia.
    Reference
    Aristideae. Simon 1993.

    Images

    Distribution

    Native to:

    Northern Territory, Queensland, Western Australia

    Aristida dominii B.K.Simon appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Oct 22, 1986 Clarkson, J.R. [4801], Queensland K000906003 isotype

    First published in Austrobaileya 2: 381 (1986)

    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.
    • Mallett, K. (ed.) (2005). Flora of Australia 44B: 1-486. Australian Government Publishing Service, Canberra.

    Literature

    Kew Backbone Distributions
    • Mallett, K. (ed.) (2005). Flora of Australia 44B: 1-486. 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