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  1. Family: Poaceae Barnhart
    1. Genus: Sporobolus R.Br.
      1. Sporobolus potosiensis Wipff & S.D.Jones

        This species is accepted, and its native range is NE. Mexico.

    [GB]
    Habit
    Perennial. Rhizomes elongated. Culms erect; 18-51 cm long. Leaf-sheaths glabrous on surface; outer margin hairy. Leaf-sheath oral hairs ciliate. Ligule a fringe of hairs; 0.1-0.3 mm long. Collar glabrous. Leaf-blades flat, or conduplicate, or involute; 6.2-24 cm long; 0.6-2.5 mm wide. Leaf-blade surface scaberulous and papillose; rough adaxially. Leaf-blade margins scaberulous.
    Inflorescences
    Inflorescence a panicle. Panicle open; elliptic; 12-18 cm long; 4-9 cm wide. Primary panicle branches 3-8 cm long. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 0.2-2.2 mm long.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic; subterete; 1.6-2.5 mm long; 0.5-1.1 mm wide; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic; subterete; 1.6-2.5 mm long; 0.5-1.1 mm wide; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes deciduous; reaching apex of florets. Lower glume lanceolate; 1-1.5 mm long; 0.75 length of upper glume; hyaline; without keels; 0 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 1.3-2.1 mm long; 1 length of adjacent fertile lemma; membranous; without keels; 1 -veined. Upper glume lateral veins absent. Upper glume apex acute.
    Florets
    Fertile lemma lanceolate; 1.5-2.3 mm long; membranous; without keel; 1 -veined. Lemma apex acute. Palea readily splitting down midline; 1.6-2.2 mm long; 2 -veined. Palea keels approximate.
    Flowers
    Anthers 3; 1.2-1.4 mm long; yellow.
    Fruits
    Caryopsis with free soft pericarp; 0.9-1 mm long.
    Distribution
    North America: Mexico.
    Reference
    Eragrostideae. Wipff & Jones 2002.

    Distribution

    Native to:

    Mexico Northeast

    Other Data

    Sporobolus potosiensis Wipff & S.D.Jones appears in other Kew resources:

    Bibliography

    First published in Sida 16: 165 (1994)

    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.
    • Dávila, P., Mejia-Saulés, M.T., Gómez-Sánchez, N., Valdés-Reyna, J., Ortíz, J.J., Morín, C., Castrejón, J. & Ocampo, A. (2006). Catálogo de las Gramíneas de México: 1-671. CONABIO, México city.

    Literature

    Kew Backbone Distributions

    • Dávila, P., Mejia-Saulés, M.T., Gómez-Sánchez, N., Valdés-Reyna, J., Ortíz, J.J., Morín, C., Castrejón, J. & Ocampo, A. (2006). Catálogo de las Gramíneas de México: 1-671. CONABIO, México city.

    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