1. Family: Poaceae Barnhart
    1. Genus: Festuca Tourn. ex L.
      1. Festuca swallenii E.B.Alexeev

        This species is accepted, and its native range is Panama.

    [GB]
    Habit
    Perennial. Basal innovations extravaginal. Culms erect; 150 cm long. Leaves basal and cauline. Leaf-sheaths open for most of their length; glabrous on surface. Leaf-sheath auricles absent. Ligule a ciliolate membrane; 0.2-0.3 mm long. Leaf-blades 40 cm long; 5-9 mm wide. Leaf-blade venation with sclerenchyma strands below veins and above all veins. Leaf-blade surface scaberulous; rough abaxially; glabrous.
    Inflorescences
    Inflorescence a panicle. Panicle open; ovate; nodding; 25 cm long; 20 cm wide. Primary panicle branches spreading; 2 -nate; 12 cm long. Panicle axis scaberulous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels scaberulous.
    Spikelets
    Spikelets comprising 4-5 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 9.5-11 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 4-5 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 9.5-11 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 3.5 mm long; 0.9 length of upper glume; chartaceous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 4 mm long; 0.66 length of adjacent fertile lemma; chartaceous; without keels; 3 -veined. Upper glume apex acute.
    Florets
    Fertile lemma lanceolate; 5.5-6.2 mm long; chartaceous; without keel; 5 -veined. Lemma apex dentate; 2 -fid; acuminate; awned; 1 -awned. Principal lemma awn from a sinus; 0.5-1.3 mm long overall. Palea 1 length of lemma; 2 -veined. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Anthers 3; 2.4-2.7 mm long. Ovary pubescent on apex.
    Fruits
    Caryopsis with adherent pericarp. Hilum linear.
    Distribution
    South America: Mesoamericana.
    Reference
    Poeae. Fl Meso-Am 1995.

    Distribution

    Native to:

    Panamá

    Festuca swallenii E.B.Alexeev appears in other Kew resources:

    First published in Bot. Zhurn. (Moscow & Leningrad) 66: 1495 (1981)

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

    Literature

    Kew Backbone Distributions
    • 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