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  1. Family: Poaceae Barnhart
    1. Genus: Muhlenbergia Schreb.
      1. Muhlenbergia glomerata (Willd.) Trin.

        This species is accepted, and its native range is Subarctic America to U.S.A.

    [GB]
    Habit
    Perennial. Rhizomes elongated; scaly. Culms erect; 30-120 cm long. Culm-internodes smooth; distally pubescent. Leaf-sheaths keeled; scaberulous. Ligule an eciliate membrane; 0.2-0.6 mm long; erose; truncate. Leaf-blades 2-15 cm long; 2-4 mm wide. Leaf-blade surface smooth, or scaberulous.
    Inflorescences
    Inflorescence a panicle. Panicle spiciform; linear, or lanceolate; continuous, or interrupted; 1.5-12 cm long; 0.3-1.8 cm wide. Primary panicle branches appressed; 0.2-2.5 cm long. Spikelets solitary. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 2-4 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pilose. Floret callus hairs 1 mm long.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 2-4 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pilose. Floret callus hairs 1 mm long.
    Glume
    Glumes persistent; similar; reaching apex of florets, or exceeding apex of florets; similar to fertile lemma in texture. Lower glume lanceolate; 2-3 mm long; 1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume surface smooth, or asperulous; rough at apex. Lower glume apex attenuate; awned; 1 -awned. Lower glume awn 2-5 mm long. Upper glume lanceolate; 2-4 mm long; 1-1.3 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume surface smooth, or asperulous; rough at apex. Upper glume apex attenuate; awned; 1 -awned. Upper glume awn 2-5 mm long.
    Florets
    Fertile lemma lanceolate; 1.4-3.1 mm long; membranous; keeled; 3 -veined. Lemma midvein pubescent. Lemma surface asperulous; rough above; pubescent; hairy at base. Lemma margins pubescent. Lemma apex attenuate; muticous, or awned; 1 -awned. Principal lemma awn 0-1 mm long overall. Palea 1 length of lemma; 2 -veined. Palea surface pilose; hairy on back.
    Flowers
    Lodicules 2; cuneate; fleshy. Anthers 3; 0.8-1.5 mm long; yellow.
    Fruits
    Caryopsis with adherent pericarp; fusiform.
    Distribution
    North America: Subarctic, western Canada, eastern Canada, north-central USA, northeast USA, and southeast USA.
    Reference
    Eragrostideae. Fl Brit Columbia 2002.

    Images

    Distribution

    Native to:

    Alberta, British Columbia, Colorado, Connecticut, District of Columbia, Idaho, Illinois, Indiana, Iowa, Kentucky, Maine, Manitoba, Maryland, Masachusettes, Minnesota, Montana, Nebraska, Nevada, New Brunswick, New Hampshire, New Jersey, New York, Newfoundland, North Carolina, North Dakota, Northwest Territorie, Nova Scotia, Ohio, Ontario, Oregon, Pennsylvania, Prince Edward I., Québec, Rhode I., Saskatchewan, South Dakota, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming, Yukon

    Synonyms

    Other Data

    Muhlenbergia glomerata (Willd.) Trin. appears in other Kew resources:

    Bibliography

    First published in Gram. Unifl. Sesquifl.: 191 (1824)

    Accepted by

    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Flora of North America Editorial Committee (2003). Flora of North America North of Mexico 25: 1-781. Oxford University Press, New York, Oxford.

    Literature

    Kew Backbone Distributions

    • Flora of North America Editorial Committee (2003). Flora of North America North of Mexico 25: 1-781. 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 2020. 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 2020. 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

    Kew Science Photographs
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/