1. Family: Poaceae Barnhart
    1. Genus: Muhlenbergia Schreb.
      1. Muhlenbergia dumosa Scribn. ex Vasey

        This species is accepted, and its native range is Arizona to Mexico.

    [GB]
    Habit
    Perennial. Rhizomes elongated; scaly. Culms erect; 30-150(-300) cm long; woody. Lateral branches fastigiate; arising from upper culm. Ligule an eciliate membrane; 0.5 mm long; erose; truncate. Leaf-blades deciduous at the ligule; flat, or convolute; 2-5(-10) cm long; 0.5-1.5 mm wide.
    Inflorescences
    Inflorescence a panicle. Panicle open, or contracted; linear, or lanceolate; 1-3(-4) cm long. Spikelets solitary. Fertile spikelets pedicelled. Pedicels oblong.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 2-2.2 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 2-2.2 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes persistent; similar; shorter than spikelet; similar to fertile lemma in texture. Lower glume lanceolate; 1-1.3 mm long; 0.75-0.9 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute; awned; 1 -awned. Lower glume awn 0.5-1 mm long. Upper glume lanceolate; 1.3-1.5 mm long; 0.7-0.75 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume apex acute; awned; 1 -awned. Upper glume awn 0.6-1(-2) mm long.
    Florets
    Fertile lemma lanceolate; 2-2.2 mm long; membranous; keeled; 3 -veined. Lemma apex acute; awned; 1 -awned. Principal lemma awn (3-)5-11 mm long overall. Palea 1 length of lemma; 2 -veined.
    Flowers
    Lodicules 2; cuneate; fleshy. Anthers 3; 1.2-1.3 mm long.
    Fruits
    Caryopsis with adherent pericarp; fusiform.
    Distribution
    North America: southwest USA and Mexico.
    Reference
    Eragrostideae. Fl Nov Gal.

    Distribution

    Native to:

    Arizona, Mexico Central, Mexico Northeast, Mexico Northwest, Mexico Southwest

    Muhlenbergia dumosa Scribn. ex Vasey appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Hinton, G.B. [3226], México State K000465873
    Hinton, G.B. [7135], México State K000465874

    First published in Contr. U.S. Natl. Herb. 3: 71 (1892)

    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.
    • 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
    • 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.
    • 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.

    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