1. Family: Poaceae Barnhart
    1. Swallenia Soderstr. & H.F.Decker

      1. This genus is accepted, and its native range is California.

    [GB]

    nonem

    Habit
    Perennial. Rhizomes elongated. Culms erect; 20-40 cm long. Ligule a fringe of hairs. Leaf-blades coriaceous; stiff. Leaf-blade apex pungent.
    Inflorescences
    Inflorescence a panicle. Panicle contracted. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 3-7 fertile florets; with diminished florets at the apex. Spikelets ovate; laterally compressed; 10-15 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 3-7 fertile florets; with diminished florets at the apex. Spikelets ovate; laterally compressed; 10-15 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes persistent; shorter than spikelet; thinner than fertile lemma. Lower glume elliptic; 1 length of upper glume; membranous; without keels; 7-11 -veined. Lower glume apex acuminate. Upper glume elliptic; 1.1-1.75 length of adjacent fertile lemma; membranous; without keels; 7-11 -veined. Upper glume apex acuminate.
    Florets
    Fertile lemma elliptic; chartaceous; without keel; 5-7 -veined. Lemma midvein ciliate. Lemma surface villous; hairy on veins. Lemma apex acute; mucronate. Palea 2 -veined. Palea surface villous. Palea apex with excurrent keel veins. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Anthers 3.
    Fruits
    Caryopsis with adherent pericarp; ellipsoid. Embryo 0.66 length of caryopsis. Hilum punctiform.
    Distribution
    North America.

    Images

    Distribution

    Native to:

    California

    Swallenia Soderstr. & H.F.Decker appears in other Kew resources:

    First published in Madroño 17: 88 (1963)

    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 2018. 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 2018. 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