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

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

    [GB]
    Habit
    Annual; caespitose; clumped loosely. Culms 25-50 cm long; 2-3 -noded. Culm-internodes smooth; distally glabrous. Lateral branches sparse. Ligule a fringe of hairs; 1 mm long. Leaf-blades 7-15 cm long; 1-1.5 mm wide. Leaf-blade surface pubescent; hairy adaxially.
    Inflorescences
    Inflorescence a panicle. Panicle open; elliptic; effuse; 10-20 cm long; 5-12 cm wide. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 7-8.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; 0.5 mm long; pubescent; acute. Floret callus hairs 1 mm long.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 7-8.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; 0.5 mm long; pubescent; acute. Floret callus hairs 1 mm long.
    Glume
    Glumes persistent; similar; exceeding apex of florets; thinner than fertile lemma. Lower glume lanceolate; 6.5-7.5 mm long; 0.9 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume surface asperulous, or scabrous. Lower glume apex acute, or acuminate; awned; 1 -awned. Lower glume awn 1-1.5 mm long. Upper glume lanceolate; 7-8.5 mm long; 1.2-1.3 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume surface asperulous, or scabrous. Upper glume apex acute, or acuminate; awned; 1 -awned. Upper glume awn 1-1.5 mm long.
    Florets
    Fertile lemma lanceolate; subterete; 5.5-6.5 mm long; coriaceous; pallid, or light brown; mottled with last colour; 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 with 8-12 mm long limb; without a column; persistent. Lateral lemma awns 8-12 mm long; subequal to principal. Palea 0.2 length of lemma; without keels.
    Flowers
    Anthers 3.
    Fruits
    Caryopsis with adherent pericarp. Hilum linear; 0.5 length of caryopsis.
    Distribution
    Australasia: Australia.
    Reference
    Aristideae. Simon 1993.

    Distribution

    Native to:

    Queensland

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

    First published in Austrobaileya 2: 87 (1984)

    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

    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