1. Family: Poaceae Barnhart
    1. Genus: Aristida L.
      1. Aristida ramosissima Engelm. ex A.Gray

        This species is accepted, and its native range is Central & E. U.S.A.

    [GB]
    Habit
    Annual. Culms 25-50 cm long. Lateral branches ample. Leaf-sheaths without keel; glabrous on surface. Ligule a fringe of hairs; 0.5 mm long. Leaf-blades flat, or involute; 0.5-1 mm wide. Leaf-blade surface glabrous, or pilose; sparsely hairy; hairy adaxially.
    Inflorescences
    Inflorescence a panicle. Panicle contracted; linear; 5-12 cm long. Primary panicle branches indistinct the panicle almost racemose. Spikelets solitary. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets linear; subterete; 18-22 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; 1 mm long; pubescent; acute.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets linear; subterete; 18-22 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; 1 mm long; pubescent; acute.
    Glume
    Glumes dissimilar; exceeding apex of florets; thinner than fertile lemma. Lower glume lanceolate; 13-20 mm long; 0.9 length of upper glume; membranous; 3-7 -veined. Lower glume apex acute, or acuminate. Upper glume lanceolate; 18-22 mm long; 1.1 length of adjacent fertile lemma; membranous; 1-3 -veined. Upper glume lateral veins absent, or distinct. Upper glume apex dentate; 2 -fid; acute; awned; 1 -awned. Upper glume awn 2-6 mm long.
    Florets
    Fertile lemma linear; subterete; 16-25 mm long; coriaceous; without keel; 3 -veined. Lemma margins convolute; covering most of palea. Lemma apex awned; 3 -awned. Principal lemma awn 3-branched; recurved at base of limb; with 18-28 mm long limb; with a straight or slightly twisted column. Column of lemma awn 5 mm long. Lateral lemma awns 0.5-4 mm long; shorter than principal.
    Flowers
    Anthers 3.
    Distribution
    North America: north-central USA, northeast USA, south-central USA, and southeast USA.
    Reference
    Aristideae. Gr Tex 1993.

    Images

    Distribution

    Native to:

    Arkansas, Florida, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Mississippi, Missouri, Ohio, Oklahoma, Tennessee, Texas

    Aristida ramosissima Engelm. ex A.Gray appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Wright, C. [757], USA K000906119
    Engelmann, G. [s.n.], Missouri K000906120
    Engelmann, G. [s.n.], Illinois K000906121

    First published in Manual, ed. 5: 618 (1867)

    Accepted by

    • Hall, D.W. (2019). Grasses of Florida: 1-353. University press of Florida.
    • 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
    • Hall, D.W. (2019). Grasses of Florida: 1-353. University press of Florida.
    • 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