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  1. Family: Poaceae Barnhart
    1. Genus: Muhlenbergia Schreb.
      1. Muhlenbergia grandis Vasey

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

    [GB]
    Habit
    Perennial; caespitose. Culms robust; 100-150 cm long. Culm-internodes distally pubescent (below nodes). Leaf-sheaths keeled. Ligule an eciliate membrane; 1.5-6 mm long; lacerate. Leaf-blades 30-75 cm long; 3-5 mm wide. Leaf-blade surface pubescent; moderately hairy; hairy adaxially.
    Inflorescences
    Inflorescence a panicle. Panicle open; lanceolate; equilateral, or nodding; 30-50 cm long; 4-5 cm wide. Primary panicle branches ascending. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 1-3 mm long.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 1.5-2.2 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 1.5-2.2 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes persistent; similar; shorter than spikelet, or reaching apex of florets. Lower glume lanceolate; 1.4-2.2 mm long; 1 length of upper glume; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume surface smooth, or asperulous; glabrous, or puberulous. Lower glume apex entire, or erose; obtuse, or acute. Upper glume lanceolate; 1.4-2.2 mm long; 0.9-1 length of adjacent fertile lemma; membranous; without keels; 1 -veined. Upper glume lateral veins absent. Upper glume surface smooth, or asperulous. Upper glume apex entire, or erose; obtuse, or acute.
    Florets
    Fertile lemma lanceolate; 1.5-2.2 mm long; membranous; without keel; 3 -veined. Lemma surface pubescent; hairy below. Lemma apex acute; awned; 1 -awned. Principal lemma awn 10-20 mm long overall. Palea 1 length of lemma; 2 -veined. Palea surface pubescent; hairy on back; hairy below.
    Flowers
    Lodicules 2; cuneate; fleshy. Anthers 3; 1 mm long.
    Fruits
    Caryopsis with adherent pericarp; fusiform.
    Distribution
    North America: Mexico.
    Reference
    Eragrostideae. Fl Nov Gal 1994.

    Images

    Distribution

    Native to:

    Mexico Central, Mexico Northeast, Mexico Northwest, Mexico Southwest

    Synonyms

    Other Data

    Muhlenbergia grandis Vasey appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    s.coll. [515a], Mexico K000308912
    Palmer, E. [515], Mexico K000308911

    Bibliography

    First published in Contr. U.S. Natl. Herb. 1: 283 (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.

    Literature

    Kew Backbone Distributions

    • López Patiño, E.J., Szeszko, D.R., Rascala Pérez, J. & Beltrán Retis, A.S. (2012). The flora of the Tenacingo-Malinalco-Zumpahuacán protected natural area, state of Mexico, Mexico Harvard Papers in Botany 17: 65-167.
    • 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

    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.
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/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