1. Family: Poaceae Barnhart
    1. Genus: Aristida L.
      1. Aristida macroclada Henrard

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

    [GB]
    Habit
    Perennial; caespitose. Culms 60-100 cm long; 5-9 -noded. Culm-internodes smooth; distally glabrous. Lateral branches sparse. Leaf-sheaths glabrous on surface. Leaf-sheath oral hairs lacking, or ciliate, or bearded. Ligule a fringe of hairs; 0.3 mm long. Collar glabrous. Leaf-blades involute; 15-30 cm long; 1-2.3 mm wide. Leaf-blade surface glabrous, or pilose; hairy adaxially.
    Inflorescences
    Inflorescence a panicle. Panicle open; elliptic; 17-24 cm long; 3-7 cm wide. Primary panicle branches 5-10 cm long. Panicle branches with prominent pulvini. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 6-15 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; 0.5-0.8 mm long; pubescent; acute.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 6-15 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; 0.5-0.8 mm long; pubescent; acute.
    Glume
    Glumes persistent; similar; exceeding apex of florets; thinner than fertile lemma. Lower glume lanceolate; 4-11 mm long; 0.66-0.8 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume surface smooth to scabrous. Lower glume apex emarginate; mucronate. Upper glume lanceolate; 6-15 mm long; 1.1-1.6 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume apex emarginate; mucronate.
    Florets
    Fertile lemma lanceolate; subterete; 5.5-9.5 mm long; coriaceous; without keel; 3 -veined. Lemma surface tuberculate; rough above. Lemma margins convolute; covering most of palea. Lemma apex acute; awned; 3 -awned. Principal lemma awn 3-branched; with 10-29 mm long limb; with a straight or slightly twisted column, or with twisted column; persistent. Column of lemma awn 1-8 mm long. Lateral lemma awns 9-26 mm long; shorter than principal. Palea 0.2 length of lemma; without keels.
    Flowers
    Anthers 3.
    Fruits
    Caryopsis with adherent pericarp; 5-8 mm long. Hilum linear.
    Distribution
    Asia-tropical: Papuasia. Australasia: Australia.
    Reference
    Aristideae. Simon 1993.

    Images

    Distribution

    Native to:

    New Guinea, Northern Territory, Queensland

    Aristida macroclada Henrard appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 1925 Tenison-Woods, J.E. [12], Australia K000906165 Unknown type material

    First published in Meded. Rijks-Herb. 54A: 325 (1927)

    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.
    • Henty, E.E. (1969). A manual of the grasses of New Guinea: 1-215. Division of Botany, Dpt. of Forests, LAE, New Guinea.

    Literature

    Kew Backbone Distributions
    • Mallett, K. (ed.) (2005). Flora of Australia 44B: 1-486. Australian Government Publishing Service, Canberra.
    • Henty, E.E. (1969). A manual of the grasses of New Guinea: 1-215. Division of Botany, Dpt. of Forests, LAE, New Guinea.

    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