1. Family: Poaceae Barnhart
    1. Genus: Gouinia E.Fourn. ex Benth. & Hook.f.
      1. Gouinia isabelensis J.J.Ortíz

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

    [GB]
    Habit
    Perennial; culms solitary, or caespitose. Culms erect; 50-100 cm long; 0.5-3 mm diam.; 4-7 -noded. Culm-internodes distally glabrous. Lateral branches lacking. Leaf-sheaths longer than adjacent culm internode; antrorsely scabrous; glabrous on surface. Ligule a ciliolate membrane; 1-1.5 mm long. Collar glabrous, or pilose. Leaf-blades linear, or lanceolate; 10-30 cm long; 6-12 mm wide. Leaf-blade surface scaberulous; glabrous.
    Inflorescences
    Inflorescence composed of racemes. Racemes 4-15; borne along a central axis; unilateral; 10-15 cm long. Central inflorescence axis 10-15 cm long. Rhachis angular. Spikelet packing lax. Spikelets solitary. Fertile spikelets pedicelled. Pedicels linear; angular; 2-6 mm long; scabrous.
    Spikelets
    Spikelets comprising 3-5 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 9-12 mm long; 2-3 mm wide; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1-1.5 mm long; scaberulous. Floret callus evident; pubescent.
    Fertile
    Spikelets comprising 3-5 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 9-12 mm long; 2-3 mm wide; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1-1.5 mm long; scaberulous. Floret callus evident; pubescent.
    Glume
    Glumes persistent; similar; shorter than spikelet; similar to fertile lemma in texture. Lower glume lanceolate; 3.5-5 mm long; 0.66 length of upper glume; membranous; 1-keeled; 1-5 -veined. Lower glume primary vein scabrous. Lower glume lateral veins absent, or distinct. Lower glume apex acuminate; mucronate, or awned; 1 -awned. Lower glume awn 0.5-1 mm long. Upper glume lanceolate; 5.5-7 mm long; 0.75 length of adjacent fertile lemma; membranous; 1-keeled; 3-7 -veined. Upper glume primary vein scabrous. Upper glume apex acuminate; mucronate, or awned; 1 -awned. Upper glume awn 0.5-1 mm long.
    Florets
    Fertile lemma lanceolate; 7-9 mm long; membranous; keeled; 3-7 -veined. Lemma surface pilose; hairy below; hairy between veins. Lemma apex acuminate; awned; 1 -awned. Principal lemma awn straight, or curved; 5-10 mm long overall. Palea 6-8 mm long; 2 -veined. Palea keels scabrous. Palea surface pilose; hairy on back. Apical sterile florets 1 in number; barren; lanceolate.
    Flowers
    Anthers 3; 0.5 mm long; yellow.
    Fruits
    Caryopsis with adherent pericarp; ellipsoid; 2.5-3.5 mm long; dark brown.
    Distribution
    North America: Mexico.
    Reference
    Eragrostideae. Ortiz 2002.

    Distribution

    Native to:

    Mexico Southwest

    Gouinia isabelensis J.J.Ortíz appears in other Kew resources:

    First published in Acta Bot. Mex. 23: 18 (1993)

    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
    • 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 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