1. Family: Poaceae Barnhart
    1. Genus: Sporobolus R.Br.
      1. Sporobolus texanus Vasey

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

    [GB]
    Habit
    Perennial; caespitose. Culms erect, or geniculately ascending; 30-70 cm long. Leaf-sheaths without keel; glabrous on surface, or pilose; with tubercle-based hairs. Ligule a fringe of hairs; 0.2-0.5 mm long. Leaf-blades flat, or conduplicate; 2.5-10 cm long; 1-4 mm wide; stiff. Leaf-blade surface scabrous; rough adaxially.
    Inflorescences
    Inflorescence a panicle. Panicle open; ovate; effuse; 15-30 cm long. Primary panicle branches spreading. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 5-25 mm long.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 2.3-3.3 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 2.3-3.3 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes deciduous; reaching apex of florets. Lower glume linear; 0.33-0.5 length of upper glume; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 0.9-1 length of adjacent fertile lemma; membranous; without keels; 1 -veined. Upper glume lateral veins absent. Upper glume apex acute.
    Florets
    Fertile lemma ovate; 2.3-3.3 mm long; membranous; without keel; 1 -veined. Lemma apex acute. Palea readily splitting down midline; 1 length of lemma; 2 -veined. Palea keels approximate.
    Fruits
    Caryopsis with free soft pericarp; oblong; laterally compressed; 1-1.5 mm long; light brown. Embryo 0.5 length of caryopsis.
    Distribution
    North America: northwest USA, north-central USA, southwest USA, and south-central USA.
    Reference
    Eragrostideae. Gr Tex 1993.

    Distribution

    Native to:

    Arizona, Colorado, Kansas, Nebraska, New Mexico, Oklahoma, Texas, Utah

    Sporobolus texanus Vasey appears in other Kew resources:

    First published in Contr. U.S. Natl. Herb. 1: 57 (1890)

    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

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2018. 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 2018. 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