1. Family: Poaceae Barnhart
    1. Genus: Bouteloua Lag.
      1. Bouteloua eriopoda (Torr.) Torr.

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

    [GB]
    Habit
    Perennial; caespitose. Rootstock evident. Stolons absent, or present. Culms decumbent; 20-60 cm long; wiry. Culm-internodes distally woolly. Ligule a ciliolate membrane. Leaf-blades convolute; 5-10 cm long; 0.5-2 mm wide.
    Inflorescences
    Inflorescence composed of racemes. Racemes 3-8; borne along a central axis; ascending; unilateral; 2-5 cm long; bearing 8-18 fertile spikelets on each. Central inflorescence axis 10-15 cm long; tip without extension, or subulate. Rhachis semiterete; scabrous on surface; terminating in a barren extension; extension subulate. Spikelet packing broadside to rhachis. Raceme-bases brief; pilose (woolly). Spikelets ascending; solitary. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 1 fertile florets; with diminished florets at the apex. Spikelets cuneate; laterally compressed; 6-9 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pilose.
    Fertile
    Spikelets comprising 1 fertile florets; with diminished florets at the apex. Spikelets cuneate; laterally compressed; 6-9 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pilose.
    Glume
    Glumes persistent; similar; reaching apex of florets; thinner than fertile lemma; gaping. Lower glume lanceolate; 2.5-4 mm long; 0.33-0.5 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex attenuate. Upper glume lanceolate; 6-9 mm long; 1 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume apex attenuate.
    Florets
    Fertile lemma ovate; 6-9 mm long; coriaceous; keeled; 3 -veined. Lemma surface glabrous, or puberulous; hairy below. Lemma apex dentate; 3 -fid; with outer lobes shorter; awned; 3 -awned. Principal lemma awn 1.5-3 mm long overall. Lateral lemma awns arising on apex of lobes; 0.3-0.5 mm long; shorter than principal. Palea 2 -veined. Rhachilla extension pilose; hairy at tip. Apical sterile florets 1 in number; barren; rudimentary. Apical sterile lemmas awned; 3 -awned. Apical sterile lemma awns 4-8 mm long.
    Fruits
    Caryopsis with adherent pericarp; oblong; 2.5-3 mm long. Embryo 0.75 length of caryopsis.
    Distribution
    North America: northwest USA, north-central USA, southwest USA, south-central USA, and Mexico.
    Reference
    Cynodonteae. Gould.

    Images

    Distribution

    Native to:

    Arizona, California, Colorado, Kansas, Mexico Northeast, Mexico Northwest, Nevada, New Mexico, Oklahoma, Texas, Utah, Wyoming

    Bouteloua eriopoda (Torr.) Torr. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Fendler, A. [950], New Mexico Chondrosum eriopodum K000885851
    Wright, C. [748], USA Chondrosum eriopodum K000885848
    Wright, C. [748], USA Chondrosum eriopodum K000885852
    Vasey, G.R. [s.n.], New Mexico Chondrosum eriopodum K000885853
    Bigelow, J.M. [131], New Mexico Chondrosum eriopodum K000885849
    Bigelow, J.M. [130], USA Chondrosum eriopodum K000885850

    First published in Pacif. Railr. Rep. Whipple, Bot. 4(5; 4): 155 (1857)

    Not accepted by

    • Govaerts, R. (1996). World Checklist of Seed Plants 2(1, 2): 1-492. MIM, Deurne. [Cited as Chondrosum eriopodum.]

    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.
    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