1. Family: Poaceae Barnhart
    1. Genus: Festuca Tourn. ex L.
      1. Festuca rosei Piper

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

    [GB]
    Habit
    Perennial; caespitose. Butt sheaths persistent and investing base of culm; with fibrous dead sheaths. Culms 100-150 cm long; 2-3 mm diam.; 3-4 -noded. Leaf-sheaths glabrous on surface. Ligule an eciliate membrane; 0.5-1 mm long. Leaf-blades filiform; involute; 20-40 cm long; 1-2 mm wide. Leaf-blade surface scabrous; rough adaxially; glabrous.
    Inflorescences
    Inflorescence a panicle. Panicle open; linear, or lanceolate; 15-30 cm long. Primary panicle branches appressed, or ascending; 1 -nate; 3-5 cm long. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 3-6 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 9-12 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; 9-12 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes persistent; similar; shorter than spikelet. Lower glume linear; 3-4.5 mm long; 0.75 length of upper glume; chartaceous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume surface scabrous; rough at apex. Lower glume apex acuminate. Upper glume lanceolate; 4-7 mm long; 0.66 length of adjacent fertile lemma; chartaceous; without keels; 3 -veined. Upper glume surface scabrous; rough at apex. Upper glume apex acuminate.
    Florets
    Fertile lemma lanceolate; 6-7 mm long; chartaceous; without keel; 5 -veined. Lemma surface scabrous; rough above. Lemma apex acuminate. Palea 1 length of lemma; 2 -veined. Palea keels scabrous. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Anthers 3; 2.7-4 mm long; yellow.
    Fruits
    Caryopsis with adherent pericarp. Hilum linear.
    Distribution
    North America: Mexico. South America: Mesoamericana.
    Reference
    Poeae. Fl Nov Gal 1994.

    Distribution

    Native to:

    Guatemala, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Southeast, Mexico Southwest

    Festuca rosei Piper appears in other Kew resources:

    First published in Contr. U.S. Natl. Herb. 10: 45 (1906)

    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.
    • Davidse, G. & al. (eds.) (1994). Flora Mesoamericana 6: 1-543. Universidad Nacional Autónoma de México, México, D.F.

    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.
    • Davidse, G. & al. (eds.) (1994). Flora Mesoamericana 6: 1-543. Universidad Nacional Autónoma de México, México, D.F.

    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