1. Family: Poaceae Barnhart
    1. Megalachne Steud.

      1. This genus is accepted, and its native range is Juan Fernández Islands.

    [GB]

    nonem

    Habit
    Perennial. Culms geniculately ascending; 30-65-100 cm long. Ligule an eciliate membrane.
    Inflorescences
    Inflorescence a panicle. Panicle open. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 3-6 fertile florets (1); with diminished florets at the apex. Spikelets cuneate; laterally compressed; 15-17.5-20 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; pubescent.
    Fertile
    Spikelets comprising 3-6 fertile florets (1); with diminished florets at the apex. Spikelets cuneate; laterally compressed; 15-17.5-20 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; pubescent.
    Glume
    Glumes persistent; shorter than spikelet. Lower glume linear; 0.66-0.8525-1 length of upper glume; herbaceous; 1-keeled; 3 -veined. Lower glume apex acuminate (1), or setaceously attenuate (1); muticous (1), or awned (1). Upper glume linear; 1.2-1.3-1.4 length of adjacent fertile lemma; herbaceous; 1-keeled; 5 -veined. Upper glume apex acuminate (1), or setaceously attenuate (1); muticous (1), or awned (1); 1 -awned (1/1).
    Florets
    Fertile lemma elliptic; herbaceous; keeled; 5 -veined. Lemma midvein scabrous. Lemma apex acuminate; awned; 1 -awned. Principal lemma awn curved. Palea 0.9 length of lemma; 2 -veined. Palea keels scaberulous. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2; membranous; 2-toothed. Anthers 3. Ovary pubescent on apex.
    Fruits
    Caryopsis with adherent pericarp. Hilum linear; 0.75 length of caryopsis.
    Distribution
    South America.

    Images

    Distribution

    Native to:

    Juan Fernández Is.

    Megalachne Steud. appears in other Kew resources:

    First published in Syn. Pl. Glumac. 1: 237 (1854)

    Accepted by

    • Govaerts, R. (2019). World Checklist of Vascular Plants (WCVP Database) The Board of Trustees of the Royal Botanic Gardens, Kew.

    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