1. Family: Poaceae Barnhart
    1. Genus: Pleuropogon R.Br.
      1. Pleuropogon hooverianus (G.T.Benson) Howell

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

    [GB]
    Habit
    Perennial. Rhizomes elongated. Culms 100-150 cm long. Leaf-sheaths 10-20 cm long; glabrous on surface, or pubescent. Ligule an eciliate membrane; 1.5-3.5 mm long. Leaf-blades 10-30 cm long; 3-7 mm wide. Leaf-blade apex abruptly acute; simple, or apiculate.
    Inflorescences
    Inflorescence composed of racemes. Racemes 1; single; bilateral; 15-20 cm long; bearing few fertile spikelets. Spikelet packing broadside to rhachis; distant. Spikelets appressed, or ascending; solitary. Fertile spikelets pedicelled. Pedicels linear; 1-2 mm long.
    Spikelets
    Spikelets comprising 8-12 fertile florets; with diminished florets at the apex. Spikelets linear, or oblong; laterally compressed; 20-30 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes thickened (below); 2-2.5 mm long.
    Fertile
    Spikelets comprising 8-12 fertile florets; with diminished florets at the apex. Spikelets linear, or oblong; laterally compressed; 20-30 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes thickened (below); 2-2.5 mm long.
    Glume
    Glumes persistent; similar; shorter than spikelet; thinner than fertile lemma. Lower glume oblong; 4-5 mm long; 0.6-0.7 length of upper glume; hyaline; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex erose; acute. Upper glume oblong; 6-7 mm long; 0.8 length of adjacent fertile lemma; hyaline; without keels; 3 -veined. Upper glume apex erose; acute.
    Florets
    Fertile lemma ovate; 7-8 mm long; chartaceous; without keel; 7 -veined. Lemma surface asperulous; rough on veins. Lemma apex erose; obtuse, or acute; awned; 1 -awned. Principal lemma awn 1-2.5 mm long overall. Palea 1 length of lemma; 2 -veined. Palea keels winged; conspicuously winged; with toothed wings; scaberulous. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2; united; oblong; fleshy; truncate. Anthers 3.
    Fruits
    Caryopsis with adherent pericarp. Hilum linear.
    Distribution
    North America: southwest USA.
    Reference
    Meliceae. Benson.

    Distribution

    Native to:

    California

    Pleuropogon hooverianus (G.T.Benson) Howell appears in other Kew resources:

    First published in Leafl. W. Bot. 4: 247 (1946)

    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