1. Family: Poaceae Barnhart
    1. Genus: Alopecurus L.
      1. Alopecurus saccatus Vasey

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

    [GB]
    Habit
    Annual; caespitose. Culms 10-25 cm long. Culm-internodes distally glabrous. Ligule an eciliate membrane; 2 mm long. Leaf-blades 5-12 cm long; 1-5 mm wide.
    Inflorescences
    Inflorescence a panicle; subtended by an inflated leaf-sheath; exserted, or embraced at base by subtending leaf. Panicle spiciform; linear, or oblong; loose; 2-4 cm long; 1-1.5 cm wide. Primary panicle branches accrescent to a central axis; with evident branchlets on axis. Panicle axis with rounded ribs. Spikelets solitary. Fertile spikelets pedicelled. Pedicels linear.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 4-5 mm long; falling entire.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 4-5 mm long; falling entire.
    Glume
    Glumes connate along margins below; 0.5 of their length connate; similar; exceeding apex of florets. Lower glume oblong; 4-5 mm long; 1 length of upper glume; membranous; 1-keeled; 3 -veined. Lower glume primary vein ciliate. Lower glume surface puberulous; hairy on veins. Lower glume apex obtuse. Upper glume oblong; 4-5 mm long; 1.5-1.7 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume primary vein ciliate. Upper glume surface puberulous; hairy on veins. Upper glume apex obtuse.
    Florets
    Fertile lemma ovate; 2.7-3 mm long; membranous; keeled; 5 -veined. Lemma margins connate below. Lemma apex obtuse; awned; 1 -awned. Principal lemma awn dorsal; arising 0.2-0.25 way up back of lemma; geniculate; 8-12 mm long overall. Palea absent or minute.
    Flowers
    Lodicules absent. Anthers 3; 1 mm long. Stigmas protogynous; terminally exserted; pubescent. Ovary glabrous.
    Fruits
    Caryopsis with adherent pericarp. Hilum punctiform. Disseminule comprising a spikelet.
    Distribution
    North America: northwest USA, southwest USA, and Mexico.
    Reference
    Aveneae. Gr Baja Cal 1994.

    Images

    Distribution

    Native to:

    California, Idaho, Mexico Northwest, Oregon, Washington

    Alopecurus saccatus Vasey appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Howell, J. [s.n.], Oregon K000913547

    First published in Bot. Gaz. 6: 190 (1881)

    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.
    • 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 2019. 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 2019. 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