1. Family: Poaceae Barnhart
    1. Genus: Stipa L.
      1. Stipa spartea Trin.

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

    [GB]
    Habit
    Perennial; caespitose. Culms 70-120 cm long. Ligule an eciliate membrane; 0.5-3 mm long; glabrous on abaxial surface; obtuse. Leaf-blades flat, or involute; 20-30 cm long; 2-5 mm wide. Leaf-blade apex attenuate.
    Inflorescences
    Inflorescence a panicle. Panicle open; linear, or oblong; dense; nodding; 10-20 cm long. Primary panicle branches appressed, or ascending; bearing 1-2 fertile spikelets on each lower branch. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 30-40 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; 4-7 mm long; pubescent; pungent.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 30-40 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; 4-7 mm long; pubescent; pungent.
    Glume
    Glumes persistent; similar; exceeding apex of florets; thinner than fertile lemma. Lower glume lanceolate; 1 length of upper glume; membranous; without keels; 5-7 -veined. Lower glume apex acuminate. Upper glume lanceolate; 30-40 mm long; hyaline; without keels; 5-7 -veined. Upper glume apex acuminate.
    Florets
    Fertile lemma lanceolate; subterete; 13-25 mm long; coriaceous; dark brown; without keel; 5 -veined. Lemma surface pubescent; hairy below. Lemma margins convolute; covering most of palea; ciliate. Lemma apex acute; surmounted by a ring of hairs; with this appendage 0.5-1 mm long; awned; 1 -awned. Principal lemma awn bigeniculate; 50-200 mm long overall; with twisted column. Column of lemma awn glabrous. Palea 2 -veined; without keels.
    Flowers
    Lodicules 3; 1.5 mm long. Anthers 3; 1 mm long. Stigmas 2. Ovary glabrous.
    Fruits
    Caryopsis with adherent pericarp. Hilum linear.
    Distribution
    North America: Subarctic, western Canada, eastern Canada, northwest USA, north-central USA, northeast USA, and south-central USA.
    Reference
    Stipeae. Fl Pac NW 1994.

    Images

    Distribution

    Native to:

    Alberta, British Columbia, Colorado, Illinois, Indiana, Iowa, Kansas, Manitoba, Michigan, Minnesota, Missouri, Montana, Nebraska, New Mexico, North Dakota, Northwest Territorie, Ohio, Oklahoma, Ontario, Pennsylvania, Saskatchewan, South Dakota, Wisconsin, Wyoming

    Stipa spartea Trin. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 1977 Drummond [s.n.] K000873397
    Jan 1, 1977 s.coll. [s.n.] K000873396

    First published in Mém. Acad. Imp. Sci. St.-Pétersbourg, Sér. 6, Sci. Math. 1: 82 (1830)

    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.

    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