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

        This species is accepted, and its native range is Aruba, Curaçao.

    [GB]
    Habit
    Perennial; caespitose; clumped densely. Basal innovations intravaginal. Culms erect; 20-30 cm long. Culm-internodes smooth. Lateral branches lacking. Leaf-sheaths mostly shorter than adjacent culm internode; smooth. Leaf-sheath oral hairs bearded. Ligule a fringe of hairs. Leaf-blades curved; convolute; 10-20 cm long; 2 mm wide. Leaf-blade surface scabrous; rough adaxially. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence a panicle; exserted, or embraced at base by subtending leaf. Panicle open; linear, or lanceolate; 5-10 cm long; 1 cm wide; contracted about primary branches. Primary panicle branches 1-2 -nate. Panicle axis smooth. Panicle branches scaberulous. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets linear; subterete; 11-12 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; 0.75 mm long; pubescent; acute.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets linear; subterete; 11-12 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; 0.75 mm long; pubescent; acute.
    Glume
    Glumes similar; exceeding apex of florets; thinner than fertile lemma. Lower glume lanceolate; 11-12 mm long; 1.5 length of upper glume; membranous; 1 -veined. Lower glume primary vein scabrous. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 8 mm long; membranous; 1 -veined. Upper glume primary vein smooth. Upper glume lateral veins absent. Upper glume apex acute.
    Florets
    Fertile lemma linear; subterete; 6.5-7 mm long; coriaceous; without keel; 3 -veined. Lemma midvein scabrous. Lemma surface scaberulous; rough above. Lemma margins convolute; covering most of palea. Lemma apex awned; 3 -awned. Principal lemma awn with 20-25 mm long limb. Lateral lemma awns 17-20 mm long; shorter than principal.
    Flowers
    Anthers 3.
    Fruits
    Caryopsis with adherent pericarp; fusiform; without sulcus. Hilum linear.
    Distribution
    South America: Caribbean.
    Reference
    Aristideae. Henrard 1995.

    Distribution

    Native to:

    Aruba, Netherlands Antilles

    Aristida arubensis Henrard appears in other Kew resources:

    First published in Meded. Rijks-Herb. 54: 41 (1926)

    Accepted by

    • van Proosdij, A.S.J. (2012). Arnoldo's Zakflora, ed. 4: 1-318. Walburg Pers, Zutphen.
    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.

    Literature

    Kew Backbone Distributions
    • van Proosdij, A.S.J. (2012). Arnoldo's Zakflora, ed. 4: 1-318. Walburg Pers, Zutphen.

    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