1. Family: Poaceae Barnhart
    1. Genus: Puccinellia Parl.
      1. Puccinellia lemmonii (Vasey) Scribn.

        This species is accepted, and its native range is W. U.S.A.

    [GB]
    Habit
    Perennial; caespitose. Culms (10-)20-40(-50) cm long. Leaves mostly basal. Ligule an eciliate membrane; 1-2 mm long; entire, or erose; obtuse, or acute. Leaf-blades erect; filiform; involute; 4-8 cm long; 2-10 mm wide; stiff.
    Inflorescences
    Inflorescence a panicle. Panicle open; pyramidal; (3-)5-10(-13) cm long. Primary panicle branches spreading; whorled at most nodes. Panicle branches scabrous. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising (3-)5 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 5-7 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes eventually visible between lemmas; sparsely hairy. Floret callus glabrous, or pubescent.
    Fertile
    Spikelets comprising (3-)5 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 5-7 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes eventually visible between lemmas; sparsely hairy. Floret callus glabrous, or pubescent.
    Glume
    Glumes persistent; dissimilar; shorter than spikelet. Lower glume lanceolate; 1 mm long; 0.5 length of upper glume; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 2 mm long; 0.5-0.66 length of adjacent fertile lemma; membranous; without keels; 3 -veined. Upper glume apex acute.
    Florets
    Fertile lemma oblong; 3.5-4 mm long; membranous; much thinner above; without keel; 5 -veined. Lemma lateral veins obscure; stopping well short of apex. Lemma apex acute. Palea 1 length of lemma; 2 -veined. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2; 0.5 mm long. Anthers 3; 1.3-2 mm long. Ovary glabrous.
    Fruits
    Caryopsis with adherent pericarp. Hilum punctiform.
    Distribution
    North America: western Canada, northwest USA, and southwest USA.
    Reference
    Poeae. Fl Pac NW 1994.

    Images

    Distribution

    Native to:

    California, Idaho, Montana, Nevada, Oregon, Washington, Wyoming

    Puccinellia lemmonii (Vasey) Scribn. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Cusick, W.C. [2621], Oregon K000789667
    Howell [s.n.], Oregon K000789668

    First published in Bull. Div. Agrostol. U.S.D.A. 17: 276 (1899)

    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

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/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