1. Family: Poaceae Barnhart
    1. Genus: Sporobolus R.Br.
      1. Sporobolus cynosuroides (L.) P.M.Peterson & Saarela

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

    [GB]
    Habit
    Perennial; culms solitary. Rhizomes elongated; scaly. Culms erect; 200-350 cm long. Leaf-sheath oral hairs lacking, or ciliate. Ligule a fringe of hairs; 1-3 mm long. Leaf-blades 8-15 mm wide. Leaf-blade surface glabrous. Leaf-blade margins scabrous. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence composed of racemes. Racemes few, or numerous; 5-67; borne along a central axis; spreading; unilateral; 6-15 cm long; bearing 10-70 fertile spikelets on each. Central inflorescence axis 15-40 cm long. Rhachis angular; smooth on margins, or scabrous on margins; glabrous on margins; terminating in a spikelet. Spikelet packing broadside to rhachis; regular; 2 -rowed. Spikelets pectinate; solitary. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 9-14 mm long; falling entire.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 9-14 mm long; falling entire.
    Glume
    Glumes dissimilar; exceeding apex of florets. Lower glume linear; 3-7 mm long; 0.25-0.33 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume primary vein ciliolate. Lower glume lateral veins absent. Lower glume margins ciliolate. Lower glume apex acute. Upper glume lanceolate; 9-10 mm long; 1.3 length of adjacent fertile lemma; herbaceous; 1-keeled; 3 -veined. Upper glume primary vein ciliolate. Upper glume lateral veins prominent. Upper glume surface glabrous, or puberulous. Upper glume margins ciliolate. Upper glume apex acuminate.
    Florets
    Fertile lemma oblong; 7-11 mm long; herbaceous; keeled; 3 -veined. Lemma midvein ciliolate. Lemma surface glabrous, or puberulous; hairy all along, or above. Lemma apex obtuse. Palea 2 -veined.
    Flowers
    Lodicules absent. Anthers 3; 4-6 mm long.
    Distribution
    North America: western Canada, northeast USA, south-central USA, and southeast USA.
    Reference
    Cynodonteae. Mobberley 1993.

    Distribution

    Native to:

    Alabama, Connecticut, Delaware, District of Columbia, Florida, Georgia, Louisiana, Maryland, Masachusettes, Mississippi, New Jersey, New York, North Carolina, Pennsylvania, Rhode I., South Carolina, Texas, Virginia

    Recorded in error in:

    Mexico Northeast

    Sporobolus cynosuroides (L.) P.M.Peterson & Saarela appears in other Kew resources:

    First published in Taxon 63: 1236 (2014)

    Accepted by

    • Govaerts, R. (2019). World Checklist of Vascular Plants (WCVP Database) The Board of Trustees of the Royal Botanic Gardens, Kew.

    Literature

    Kew Backbone Distributions
    • del Rocío Nieto-Silva, G. & al. (2015). Taxonomía y distribución del género Spartina (Poaceae) en México Botanical Sciences 93: 829-843.
    • Ibrahim, K.M. & Peterson, P.M. (2014). Grasses of Washington, D.C. Smithsonian Contributions to Botany 99: 1-128.
    • 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