1. Family: Poaceae Barnhart
    1. Genus: Aristida L.
      1. Aristida palustris (Chapm.) Vasey

        This species is accepted, and its native range is SE. U.S.A. to Texas.

    [GB]
    Habit
    Perennial; caespitose. Rootstock evident. Culms erect; 100-150 cm long. Leaf-sheaths glabrous on surface. Leaf-sheath oral hairs lacking. Ligule a fringe of hairs. Leaf-blades flat; 15-30 cm long; 2-3 mm wide. Leaf-blade surface puberulous; hairy adaxially. Leaf-blade apex attenuate; filiform.
    Inflorescences
    Inflorescence a panicle. Panicle contracted; linear; 25-50 cm long. Primary panicle branches appressed; 5-10 cm long; naked below, or bearing spikelets almost to the base. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets linear; subterete; 12 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; 0.5 mm long; pubescent; acute.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets linear; subterete; 12 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; 0.5 mm long; pubescent; acute.
    Glume
    Glumes similar; exceeding apex of florets; thinner than fertile lemma. Lower glume linear; 12 mm long; 1 length of upper glume; membranous; 2 -veined. Lower glume primary vein scabrous. Lower glume surface scabrous. Lower glume apex acute; mucronate. Upper glume linear; 12 mm long; membranous; 1 -veined. Upper glume primary vein smooth. Upper glume lateral veins absent. Upper glume apex acute; mucronate.
    Florets
    Fertile lemma linear; subterete; 8 mm long; coriaceous; 3 -veined. Lemma margins convolute; covering most of palea. Lemma apex with a short cylindrical neck; with this appendage 1 mm long; awned; 3 -awned. Principal lemma awn 3-branched; spreading; with 15-30 mm long limb. Lateral lemma awns spreading less than principal; 10-25 mm long; shorter than principal.
    Flowers
    Anthers 3.
    Distribution
    North America: southeast USA.
    Reference
    Aristideae. N Amer Fl 1994.

    Images

    Distribution

    Native to:

    Alabama, Florida, Georgia, Kentucky, Louisiana, Mississippi, North Carolina, South Carolina, Texas, Virginia

    Aristida palustris (Chapm.) Vasey appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Chapman [s.n.], USA K000906098
    Drummond, T. [s.n.], Alabama K000906090

    First published in Descr. Cat. Grass. U.S.: 35 (1885)

    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.
    • Flora of North America Editorial Committee (2003). Flora of North America North of Mexico 25: 1-781. Oxford University Press, New York, Oxford.

    Literature

    Kew Backbone Distributions
    • Flora of North America Editorial Committee (2003). Flora of North America North of Mexico 25: 1-781. Oxford University Press, New York, Oxford.

    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