1. Family: Poaceae Barnhart
    1. Genus: Festuca Tourn. ex L.
      1. Festuca tancitaroensis Gonz.-Led. & S.D.Koch

        This species is accepted, and its native range is Mexico (Michoacán).

    [GB]
    Habit
    Perennial; caespitose; clumped densely. Butt sheaths persistent and investing base of culm; with fibrous dead sheaths. Basal innovations intravaginal. Culms erect; 85-130 cm long; 1-2 -noded. Leaf-sheaths glabrous on surface. Leaf-sheath auricles absent. Ligule an eciliate membrane; 1.5-2.8 mm long; truncate, or obtuse. Leaf-blades flat, or involute; 30-60 cm long; 3.3-6.5 mm wide. Leaf-blade surface ribbed; grooved adaxially; scabrous; rough abaxially. Leaf-blade apex attenuate.
    Inflorescences
    Inflorescence a panicle. Peduncle glabrous. Panicle open; ovate; 15-21 cm long. Primary panicle branches 2 -nate. Panicle branches scabrous. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 5-8 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 15-21 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 5-8 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 15-21 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 4.5-9 mm long; 0.66 length of upper glume; chartaceous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume surface scabrous. Lower glume apex acute. Upper glume lanceolate; 6.5-10.5 mm long; 0.75 length of adjacent fertile lemma; chartaceous; without keels; 3 -veined. Upper glume surface scabrous. Upper glume apex acute.
    Florets
    Fertile lemma lanceolate; 8.7-12.5 mm long; chartaceous; without keel; 5 -veined. Lemma surface scabrous. Lemma apex acute; awned. Palea 2 -veined. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2. Anthers 3; 4-5.3 mm long. Ovary glabrous.
    Fruits
    Caryopsis with adherent pericarp; 5-7.5 mm long. Hilum linear.
    Distribution
    North America: Mexico.
    Reference
    Poeae. Gonz.-Ledesma 2004.

    Distribution

    Native to:

    Mexico Southwest

    Festuca tancitaroensis Gonz.-Led. & S.D.Koch appears in other Kew resources:

    First published in Novon 4: 25 (1994)

    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 2019. 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 2019. 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