1. Family: Poaceae Barnhart
    1. Genus: Aristida L.
      1. Aristida jacobsiana B.K.Simon & Cowie

        This species is accepted, and its native range is N. Northern Territory, N. Central Queensland.

    [GB]
    Habit
    Perennial; caespitose; clumped densely. Culms 20-60 cm long; 4-6 -noded. Culm-internodes smooth; distally glabrous. Culm-nodes glabrous. Lateral branches lacking, or sparse. Leaf-sheaths longer than adjacent culm internode; smooth; glabrous on surface. Leaf-sheath oral hairs ciliate; 1-2 mm long. Ligule a fringe of hairs; 0.2 mm long. Collar pilose. Leaf-blades filiform, or linear; flat, or conduplicate, or involute, or convolute; 5-12 cm long; 1-2 mm wide. Leaf-blade surface scaberulous; rough abaxially; glabrous. Leaf-blade apex attenuate.
    Inflorescences
    Inflorescence a panicle. Panicle contracted; linear; continuous, or interrupted; 5-20 cm long; 0.5-2 cm wide. Primary panicle branches appressed; 2 -nate; 1-2.5 cm long. Panicle branches scaberulous, or scabrous. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 6-11 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; 0.5-1 mm long; pubescent; acute. Floret callus hairs 0.1-0.3 length of lemma.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 6-11 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; 0.5-1 mm long; pubescent; acute. Floret callus hairs 0.1-0.3 length of lemma.
    Glume
    Glumes persistent; similar; exceeding apex of florets; thinner than fertile lemma. Lower glume lanceolate; 3.5-6.5 mm long; 0.5-0.6 length of upper glume; membranous; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute, or acuminate; mucronate. Lower glume awn 1-2 mm long. Upper glume lanceolate; 6-11 mm long; 1.1 length of adjacent fertile lemma; membranous; 1 -veined. Upper glume lateral veins absent. Upper glume apex acute, or acuminate; mucronate. Upper glume awn 0.5-1.5 mm long.
    Florets
    Fertile lemma lanceolate; subterete; 5.5-9 mm long; coriaceous; without keel; 3 -veined. Lemma midvein scabrous. Lemma margins convolute; covering most of palea. Lemma apex acute; awned; 3 -awned. Principal lemma awn 3-branched; with 9-18 mm long limb; with a straight or slightly twisted column; persistent. Column of lemma awn 1.5-2 mm long. Lateral lemma awns spreading as much as principal; 9-185 mm long; subequal to principal.
    Distribution
    Australasia: Australia.
    Reference
    Aristideae. Simon & Cowie 2011.

    Distribution

    Native to:

    Northern Territory, Queensland

    Aristida jacobsiana B.K.Simon & Cowie appears in other Kew resources:

    First published in Telopea 13: 150 (2011)

    Accepted by

    • Govaerts, R. (2019). World Checklist of Vascular Plants (WCVP Database) The Board of Trustees of the Royal Botanic Gardens, Kew.

    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