1. Family: Poaceae Barnhart
    1. Genus: Leymus Hochst.
      1. Leymus condensatus (J.Presl) Á.Löve

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

    [GB]
    Habit
    Perennial; caespitose. Rhizomes short. Culms 150-350 cm long. Culm-internodes distally glabrous, or pubescent. Ligule an eciliate membrane; 2-5 mm long. Leaf-blades 15-30 cm long; 12-30 mm wide.
    Inflorescences
    Inflorescence composed of racemes. Racemes 1; single; bilateral; 15-50 cm long; simple, or secondarily branched. Spikelet packing broadside to rhachis. Rhachis internodes linear. Spikelets clustered at each node. Fertile spikelets sessile; 2-5 in the cluster.
    Spikelets
    Spikelets comprising 3-6 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 10-15 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 3-6 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 10-15 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes collateral; persistent; similar; shorter than spikelet. Lower glume subulate; 1 length of upper glume; coriaceous; 1 -veined. Lower glume lateral veins absent. Upper glume subulate; 1 length of adjacent fertile lemma; coriaceous; 1 -veined. Upper glume lateral veins absent.
    Florets
    Fertile lemma lanceolate; 8-13 mm long; coriaceous; without keel; 5 -veined. Lemma surface glabrous, or pubescent. Lemma apex acute; muticous, or mucronate. Palea 2 -veined. Apical sterile florets resembling fertile though underdeveloped.
    Distribution
    North America: southwest USA and Mexico.
    Reference
    Triticeae. Gr Baja Cal 1994.

    Distribution

    Native to:

    California, Mexico Northeast, Mexico Northwest

    Introduced into:

    Alberta, British Columbia

    Leymus condensatus (J.Presl) Á.Löve appears in other Kew resources:

    First published in Taxon 29: 168 (1980)

    Accepted by

    • Flora of North America Editorial Committee (2007). Flora of North America North of Mexico 24: 1-908. Oxford University Press, New York, Oxford.
    • 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
    • Flora of North America Editorial Committee (2007). Flora of North America North of Mexico 24: 1-908. Oxford University Press, New York, Oxford.
    • 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 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