1. Family: Poaceae Barnhart
    1. Genus: Eragrostis Wolf
      1. Eragrostis spectabilis (Pursh) Steud.

        This species is accepted, and its native range is S. Canada to NE. Mexico.

    [GB]
    Habit
    Perennial; caespitose. Rhizomes short; knotty. Culms erect, or geniculately ascending; 40-75 cm long. Leaf-sheaths glabrous on surface, or pilose; outer margin hairy. Leaf-sheath oral hairs ciliate. Ligule a fringe of hairs. Leaf-blades 15-40 cm long; 3-7 mm wide. Leaf-blade surface glabrous, or pilose; hairy on both sides.
    Inflorescences
    Inflorescence a panicle; deciduous as a whole; exserted, or embraced at base by subtending leaf. Panicle open; oblong, or ovate; effuse; 25-45 cm long; 15-30 cm wide; 0.66 of culm length. Primary panicle branches ascending, or spreading; 9-15 cm long. Panicle branches capillary; straight; scabrous; bearded in axils. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 7-11 fertile florets; with diminished florets at the apex. Spikelets linear, or oblong; laterally compressed; 5-7 mm long; 1.5-2 mm wide; breaking up at maturity; rhachilla deciduous; disarticulating below each fertile floret. Rhachilla internodes eventually visible between lemmas.
    Fertile
    Spikelets comprising 7-11 fertile florets; with diminished florets at the apex. Spikelets linear, or oblong; laterally compressed; 5-7 mm long; 1.5-2 mm wide; breaking up at maturity; rhachilla deciduous; disarticulating below each fertile floret. Rhachilla internodes eventually visible between lemmas.
    Glume
    Glumes deciduous; similar; shorter than spikelet. Lower glume ovate; 1.4-2 mm long; 0.9 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume ovate; 1.6-2.2 mm long; 1 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume apex acute.
    Florets
    Fertile lemma ovate; 1.8-2.2 mm long; chartaceous; purple; keeled; 3 -veined. Lemma lateral veins prominent. Lemma apex acute. Palea keels ciliolate. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2; cuneate; fleshy.
    Fruits
    Caryopsis with adherent pericarp; ellipsoid; 0.8 mm long; dark brown.
    Distribution
    North America: eastern Canada, northwest USA, north-central USA, northeast USA, southwest USA, south-central USA, southeast USA, and Mexico.
    Reference
    Eragrostideae. Gr Texas 1994.

    Images

    Distribution

    Native to:

    Alabama, Arizona, Arkansas, Colorado, Connecticut, District of Columbia, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Manitoba, Maryland, Masachusettes, Mexico Northeast, Michigan, Minnesota, Mississippi, Missouri, Nebraska, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Ontario, Pennsylvania, Québec, Rhode I., South Carolina, South Dakota, Tennessee, Texas, Vermont, Virginia, West Virginia, Wisconsin, Wyoming

    Eragrostis spectabilis (Pursh) Steud. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Pursh, F.T. [s.n.], USA K000907530

    First published in Nomencl. Bot., ed. 2, 1: 564 (1840)

    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.
    • 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.
    • 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
    • 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.
    • 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

    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