1. Family: Poaceae Barnhart
    1. Genus: Poa L.
      1. Poa fendleriana (Steud.) Vasey

        This species is accepted, and its native range is W. & Central Canada to N. Mexico.

    [GB]
    Habit
    Perennial; caespitose. Rhizomes short. Butt sheaths herbaceous. Culms erect; 25-60 cm long. Culm-internodes terete. Leaves mostly basal. Leaf-sheaths with 0.33 of their length closed; striately veined; antrorsely scabrous. Ligule an eciliate membrane; 1-3 mm long; scaberulous on abaxial surface; truncate, or obtuse. Leaf-blades flat, or conduplicate; 1-20 cm long; 0.8-2 mm wide; 0.1-1 cm long at summit of culm; stiff; mid-green. Leaf-blade surface scabrous; rough adaxially; glabrous.
    Inflorescences
    Dioecious. Inflorescence a panicle; comprising 15-60 fertile spikelets. Peduncle scaberulous above. Panicle contracted; lanceolate; (3-)4-8(-12) cm long. Primary panicle branches appressed; naked below, or bearing spikelets almost to the base. Panicle branches scabrous. Spikelets solitary. Fertile spikelets pedicelled. Male inflorescence similar to female. Male spikelets resembling female.
    Spikelets
    Spikelets comprising 2-7 fertile florets; with diminished florets at the apex. Spikelets ovate; laterally compressed; 3-10 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 0.9-1.3 mm long; smooth, or scaberulous; glabrous, or sparsely hairy. Floret callus glabrous, or pubescent.
    Fertile
    Spikelets comprising 2-7 fertile florets; with diminished florets at the apex. Spikelets ovate; laterally compressed; 3-10 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 0.9-1.3 mm long; smooth, or scaberulous; glabrous, or sparsely hairy. Floret callus glabrous, or pubescent.
    Glume
    Glumes persistent; similar; shorter than spikelet; shiny. Lower glume oblong; 0.9 length of upper glume; membranous; much thinner on margins; 1-keeled; 1-3 -veined. Lower glume lateral veins absent, or obscure. Lower glume apex acute. Upper glume lanceolate; 0.5-0.66 length of adjacent fertile lemma; membranous; with scarious margins; 1-keeled; 3 -veined. Upper glume apex acute.
    Florets
    Fertile florets female. Fertile lemma oblong; oblong in profile; 3-6 mm long; membranous; much thinner on margins; mid-green; shiny; keeled; 5 -veined. Lemma midvein ciliate; hairy below. Lemma lateral veins with distinct primaries but obscure intermediates. Lemma surface smooth, or papillose. Lemma margins ciliate; hairy below. Lemma apex obtuse. Palea 0.9 length of lemma. Palea keels scabrous; eciliate, or ciliate. Palea surface scabrous. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2; membranous. Anthers 3; 1.5-3 mm long. Staminodes absent, or present; 0-0.5 mm long.
    Fruits
    Caryopsis with adherent pericarp. Hilum punctiform.
    Male
    Male inflorescence similar to female. Male spikelets resembling female.
    Distribution
    North America: northwest USA, north-central USA, southwest USA, south-central USA, and Mexico.
    Reference
    Poeae. Soreng 1992.

    Images

    Distribution

    Native to:

    Alberta, Arizona, British Columbia, California, Colorado, Idaho, Manitoba, Mexico Northeast, Mexico Northwest, Montana, Nebraska, Nevada, New Mexico, North Dakota, Oklahoma, Oregon, South Dakota, Texas, Utah, Washington, Wyoming

    Poa fendleriana (Steud.) Vasey appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Nelson, A. [3180], Wyoming K000633973 Unknown type material

    First published in Bull. Div. Bot. U.S.D.A. 13(2): t. 74 (1893)

    Accepted by

    • Soreng, R.J. & Peterson, P.M. (2012). Revision of Poa L. (Poaceae, Pooideae, Poeae, Poinae) in Mexico: new records, re-evaluation of P. ruprechtii, and two new species, P. palmeri and P. wendtii PhytoKeys 15: 1-104.
    • 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.
    • Dávila, P., Mejia-Saulés, M.T., Gómez-Sánchez, N., Valdés-Reyna, J., Ortíz, J.J., Morín, C., Castrejón, J. & Ocampo, A. (2006). Catálogo de las Gramíneas de México: 1-671. CONABIO, México city.

    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.
    • Dávila, P., Mejia-Saulés, M.T., Gómez-Sánchez, N., Valdés-Reyna, J., Ortíz, J.J., Morín, C., Castrejón, J. & Ocampo, A. (2006). Catálogo de las Gramíneas de México: 1-671. CONABIO, México city.

    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