1. Family: Poaceae Barnhart
    1. Genus: Bouteloua Lag.
      1. Bouteloua aristidoides (Kunth) Griseb.

        This species is accepted, and its native range is SW. & S. Central U.S.A. to Mexico, Colombia to N. Argentina.

    [GB]
    Habit
    Annual; caespitose. Culms geniculately ascending, or decumbent; slender; 6-50 cm long. Ligule a fringe of hairs. Leaf-blades flat, or conduplicate; 2-7 cm long; 1-2 mm wide. Leaf-blade surface pilose; sparsely hairy; hairy adaxially.
    Inflorescences
    Inflorescence composed of racemes. Racemes 4-15; borne along a central axis; spreading, or deflexed; unilateral; 1.5-3.5 cm long; bearing few fertile spikelets; bearing 2-4 fertile spikelets on each. Central inflorescence axis 2.5-10 cm long; tip subulate. Rhachis deciduous from axis; flattened; pubescent on surface; terminating in a barren extension; extension bristle-like; extension 5-10 mm long. Spikelet packing broadside to rhachis. Raceme-bases linear; 1 mm long; shed with the raceme; acute, or pungent. Spikelets appressed; solitary. Fertile spikelets sessile.
    Sterile
    Basal sterile spikelets rudimentary; 1 in number.
    Spikelets
    Spikelets comprising 1 fertile florets; with diminished florets at the apex. Spikelets cuneate; laterally compressed; 6-8 mm long; falling entire; deciduous with accessory branch structures. Basal sterile spikelets rudimentary; 1 in number.
    Fertile
    Spikelets comprising 1 fertile florets; with diminished florets at the apex. Spikelets cuneate; laterally compressed; 6-8 mm long; falling entire; deciduous with accessory branch structures.
    Glume
    Glumes similar; shorter than spikelet; thinner than fertile lemma; gaping. Lower glume lanceolate; 1.5-2 mm long; 0.3-0.4 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume primary vein scaberulous. Lower glume lateral veins absent. Lower glume apex acute, or acuminate. Upper glume lanceolate; 5-6 mm long; 0.7-0.8 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume primary vein scaberulous. Upper glume lateral veins absent. Upper glume apex acute, or acuminate.
    Florets
    Fertile lemma lanceolate; 6-8 mm long; coriaceous; keeled; 3 -veined. Lemma surface pubescent. Lemma apex dentate; 3 -fid; mucronate; 3 -awned (mucros). Palea apex with excurrent keel veins. Rhachilla extension glabrous. Apical sterile florets 1 in number; barren; rudimentary. Apical sterile lemmas awned; 3 -awned. Apical sterile lemma awns equal; 2-6 mm long.
    Fruits
    Caryopsis with adherent pericarp; 2.5-3 mm long; light brown. Embryo 0.75 length of caryopsis.
    Distribution
    North America: southwest USA, south-central USA, and Mexico. South America: Caribbean, western South America, and southern South America.
    Reference
    Cynodonteae. Gould.

    Images

    Distribution

    Native to:

    Argentina Northeast, Argentina Northwest, Arizona, Aruba, Bolivia, Brazil Northeast, California, Colombia, Ecuador, Mexico Central, Mexico Northeast, Mexico Northwest, Mexico Southwest, Nevada, New Mexico, Paraguay, Peru, Texas, Utah, Vermont

    Introduced into:

    Maryland

    Bouteloua aristidoides (Kunth) Griseb. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Argentina K000309063

    First published in Fl. Brit. W. I.: 537 (1864)

    Accepted by

    • Gilman, A.V. (2015). New flora of Vermont Memoirs of the New York Botanical Garden 110: 1-614.
    • van Proosdij, A.S.J. (2012). Arnoldo's Zakflora, ed. 4: 1-318. Walburg Pers, Zutphen.
    • Giraldo-Cañas, D. (2011). Catálogo de la familia Poaceae en Colombia Darwiniana 49: 139-247.
    • Zuloaga, F.O., Morrone, O. , Belgrano, M.J., Marticorena, C. & Marchesi, E. (eds.) (2008). Catálogo de las Plantas Vasculares del Cono Sur Monographs in Systematic Botany from the Missouri Botanical Garden 107: 1-3348.
    • 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.
    • Jørgensen, P.M. & León-Yánez, S. (eds.) (1999). Catalogue of the Vascular Plants of Ecuador Monographs in Systematic Botany from the Missouri Botanical Garden 75: i-viii, 1-1181.
    • Renvoize, S.A. (1998). Gramineas de Bolivia: 1-644. The Royal Botanic Gardens, Kew.
    • Brako, L. & Zarucchi, J.L. (1993). Catalogue of the Flowering Plants and Gymnosperms of Peru Monographs in Systematic Botany from the Missouri Botanical Garden 45: i-xl, 1-1286.

    Literature

    Kew Backbone Distributions
    • Gilman, A.V. (2015). New flora of Vermont Memoirs of the New York Botanical Garden 110: 1-614.
    • Forzza, R.C. & al. (2013). Lista de Espécies da Flora do Brasil http://floradobrasil.jbrj.gov.br/2010/.
    • van Proosdij, A.S.J. (2012). Arnoldo's Zakflora, ed. 4: 1-318. Walburg Pers, Zutphen.
    • Giraldo-Cañas, D. (2011). Catálogo de la familia Poaceae en Colombia Darwiniana 49: 139-247.
    • Zuloaga, F.O., Morrone, O. , Belgrano, M.J., Marticorena, C. & Marchesi, E. (eds.) (2008). Catálogo de las Plantas Vasculares del Cono Sur Monographs in Systematic Botany from the Missouri Botanical Garden 107: 1-3348.
    • 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.
    • Jørgensen, P.M. & León-Yánez, S. (eds.) (1999). Catalogue of the Vascular Plants of Ecuador Monographs in Systematic Botany from the Missouri Botanical Garden 75: i-viii, 1-1181.
    • Renvoize, S.A. (1998). Gramineas de Bolivia: 1-644. The Royal Botanic Gardens, Kew.
    • Brako, L. & Zarucchi, J.L. (1993). Catalogue of the Flowering Plants and Gymnosperms of Peru Monographs in Systematic Botany from the Missouri Botanical Garden 45: i-xl, 1-1286.

    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 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