1. Family: Poaceae Barnhart
    1. Genus: Phalaris L.
      1. Phalaris lemmonii Vasey

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

    [GB]
    Habit
    Annual; caespitose. Culms 70-135 cm long. Ligule an eciliate membrane. Leaf-blades 8-20 cm long; 2-12 mm wide.
    Inflorescences
    Inflorescence a panicle. Panicle spiciform; linear; interrupted; 4-12 cm long; 0.7-1.5 cm wide. Spikelets solitary. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 2 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets obovate; laterally compressed; compressed slightly; 4.9-6.7 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 2 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets obovate; laterally compressed; compressed slightly; 4.9-6.7 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes persistent; similar; exceeding apex of florets; thinner than fertile lemma. Lower glume elliptic; 4.9-6.7 mm long; 1 length of upper glume; chartaceous; 1-keeled; wingless; 3 -veined. Lower glume primary vein scabrous. Lower glume surface asperulous; rough on veins. Lower glume apex acuminate. Upper glume elliptic; 4.9-6.7 mm long; 1.2-1.3 length of adjacent fertile lemma; chartaceous; 1-keeled; wingless; 3 -veined. Upper glume primary vein scabrous. Upper glume surface asperulous; rough on veins. Upper glume apex acuminate.
    Florets
    Basal sterile florets similar; barren; without significant palea; attached to and deciduous with the fertile. Lemma of lower sterile floret linear; 1-1.6 mm long; 0.25-0.33 length of fertile lemma; pubescent. Fertile lemma elliptic; subterete; 4-5.1 mm long; cartilaginous; shiny; keeled; 5 -veined. Lemma surface pubescent; hairy all along. Lemma apex acute. Palea cartilaginous; 2 -veined; without keels. Palea surface pubescent; hairy on back.
    Flowers
    Lodicules 2; membranous. Anthers 3. Ovary glabrous.
    Fruits
    Caryopsis with adherent pericarp; 2.1-2.3 mm long. Hilum linear.
    Distribution
    North America: southwest USA and Mexico.
    Reference
    Aveneae. Anderson.

    Distribution

    Native to:

    California

    Phalaris lemmonii Vasey appears in other Kew resources:

    First published in Contr. U.S. Natl. Herb. 3: 42 (1892)

    Accepted by

    • Flora of North America Editorial Committee (2007). Flora of North America North of Mexico 24: 1-908. Oxford University Press, New York, Oxford.
    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.

    Literature

    Kew Backbone Distributions
    • Flora of North America Editorial Committee (2007). Flora of North America North of Mexico 24: 1-908. Oxford University Press, New York, Oxford.

    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