1. Family: Poaceae Barnhart
    1. Genus: Sporobolus R.Br.
      1. Sporobolus clandestinus (Biehler) Hitchc.

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

    [GB]
    Habit
    Perennial; caespitose. Butt sheaths glabrous, or pilose. Culms erect, or geniculately ascending; 50-100 cm long; 1-2 mm diam. Leaf-sheaths without keel. Leaf-sheath oral hairs lacking, or ciliate. Ligule a fringe of hairs; 0.2-0.3 mm long. Leaf-blades flat, or involute; 15-25 cm long; 1-3 mm wide. Leaf-blade apex attenuate.
    Inflorescences
    Inflorescence a panicle; terminal and axillary; subtended by an inflated leaf-sheath; embraced at base by subtending leaf, or enclosed. Panicle spiciform; linear; 5-10 cm long. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 5-7 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 5-7 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes deciduous; shorter than spikelet. Lower glume lanceolate; 2-3.5 mm long; 0.66 length of upper glume; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume surface asperulous. Lower glume apex acute. Upper glume ovate; 3-4.2 mm long; 0.66 length of adjacent fertile lemma; membranous; without keels; 1 -veined. Upper glume lateral veins absent. Upper glume surface asperulous. Upper glume apex acute.
    Florets
    Fertile lemma ovate; 4-5 mm long; membranous; mid-green and purple; mottled with last colour; without keel; 1 -veined. Lemma surface pubescent. Lemma apex acute, or acuminate. Palea 1.2-2 length of lemma; 2 -veined. Palea keels approximate. Palea surface pubescent; hairy on back and on flanks.
    Flowers
    Anthers 2.5-2.8 mm long; orange.
    Fruits
    Caryopsis with free soft pericarp; 2-3 mm long; dark brown. Embryo 0.5 length of caryopsis.
    Distribution
    North America: north-central USA, northeast USA, south-central USA, and southeast USA.
    Reference
    Eragrostideae. Gr Tex 1993.

    Distribution

    Native to:

    Alabama, Arkansas, Connecticut, Delaware, District of Columbia, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maryland, Masachusettes, Mississippi, Missouri, New Jersey, New York, North Carolina, Oklahoma, Pennsylvania, South Carolina, Tennessee, Texas, Virginia, West Virginia, Wisconsin

    Sporobolus clandestinus (Biehler) Hitchc. appears in other Kew resources:

    First published in Contr. U.S. Natl. Herb. 12: 150 (1908)

    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 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