1. Family: Poaceae Barnhart
    1. Genus: Agrostis L.
      1. Agrostis perennans (Walter) Tuck.

        This species is accepted, and its native range is N. & Central America, Hispaniola, Venezuela to S. South America.

    [GB]
    Habit
    Perennial; caespitose. Culms decumbent; weak; 50-100 cm long; 0.7-1 mm diam. Lateral branches lacking. Leaves cauline. Leaf-sheaths ribbed; smooth; glabrous on surface. Ligule an eciliate membrane; 2-5 mm long; lacerate. Leaf-blades 6-13 cm long; 1.5-3 mm wide. Leaf-blade surface ribbed; scaberulous.
    Inflorescences
    Inflorescence a panicle. Peduncle 8-15 cm long. Panicle open; ovate; effuse; 11-15 cm long; 6-11 cm wide. Primary panicle branches 3-7 -nate; whorled at most nodes. Panicle branches flexuous. Spikelets spreading; solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 2.2-2.9 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus glabrous.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 2.2-2.9 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus glabrous.
    Glume
    Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma; shiny; gaping. Lower glume oblong; 2.2-2.9 mm long; 1.1-1.2 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume primary vein scabrous. Lower glume lateral veins absent. Lower glume apex caudate. Upper glume oblong; 1.9-2.3 mm long; 1.1-1.3 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume primary vein scabrous. Upper glume lateral veins absent. Upper glume apex caudate.
    Florets
    Fertile lemma ovate; 1.7-1.8 mm long; hyaline; without keel; 5 -veined. Lemma lateral veins obscure; extending close to apex. Lemma apex erose; truncate; muticous. Palea absent or minute.
    Flowers
    Lodicules 2; membranous. Anthers 3; 0.8-1 mm long; purple.
    Fruits
    Caryopsis with adherent pericarp. Hilum linear.
    Distribution
    Africa: western Indian ocean. North America: eastern Canada, north-central USA, northeast USA, south-central USA, southeast USA, and Mexico. South America: Mesoamericana, Caribbean, northern South America, western South America, and southern South America.
    Reference
    Aveneae. Fl Costaric 1993.

    Images

    Distribution

    Native to:

    Alabama, Argentina Northeast, Argentina Northwest, Argentina South, Arkansas, Bolivia, California, Chile Central, Chile South, Colombia, Connecticut, Costa Rica, Delaware, District of Columbia, Dominican Republic, Ecuador, Florida, Georgia, Guatemala, Haiti, Honduras, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Masachusettes, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Southeast, Mexico Southwest, Michigan, Minnesota, Mississippi, Missouri, Nebraska, New Brunswick, New Hampshire, New Jersey, New York, Newfoundland, North Carolina, North Dakota, Nova Scotia, Ohio, Oklahoma, Ontario, Oregon, Pennsylvania, Peru, Prince Edward I., Québec, Rhode I., South Carolina, South Dakota, Tennessee, Texas, Venezuela, Vermont, Virginia, Washington, West Virginia, Wisconsin

    Introduced into:

    Madagascar

    Agrostis perennans (Walter) Tuck. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Hinton, G.B. [2734], México State K000465751
    Hinton, G.B. [2734], México State K000465752
    Hinton, G.B. [8393], México State K000465753
    King [s.n.], Chile K000308391
    Pringle, C.G. [4251], Mexico K000308368
    Pringle, C.G. [4485], Mexico K000308369
    Pringle, C.G. [11209], Mexico K000308370
    Liebmann [709], Mexico K000308372
    Lechler [1225] K000308392
    Lechler [1219] K000308399
    Pursh, F.T. [s.n.] K000838197
    Spruce, R. [5926], Ecuador Agrostis elata K000201577
    Spruce, R. [5926], Ecuador Agrostis elata K000201578

    First published in Amer. J. Sci. Arts 45: 44 (1843)

    Accepted by

    • Acevedo-Rodríguez, P. & Strong, M.T. (2012). Catalogue of seed plants of the West Indies Smithsonian Contributions to Botany 98: 1-1192.
    • Giraldo-Cañas, D. (2011). Catálogo de la familia Poaceae en Colombia Darwiniana 49: 139-247.
    • Zuloaga, F.O., Morrone, O. , Belgrano, M.J., Marticorena, C. & Marchesi, E. (eds.) (2008). Catálogo de las Plantas Vasculares del Cono Sur Monographs in Systematic Botany from the Missouri Botanical Garden 107: 1-3348.
    • Hokche, O., Berry, P.E. & Huber, O. (eds.) (2008). Nuevo Catálogo de la Flora Vascular de Venezuela: 1-859. Fundación Instituto Botánico de Venezuela.
    • Nelson Sutherland, C.H. (2008). Catálogo de las plantes vasculares de Honduras. Espermatofitas: 1-1576. SERNA/Guaymuras, Tegucigalpa, Honduras.
    • 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.
    • Jørgensen, P.M. & León-Yánez, S. (eds.) (1999). Catalogue of the Vascular Plants of Ecuador Monographs in Systematic Botany from the Missouri Botanical Garden 75: i-viii, 1-1181.
    • Renvoize, S.A. (1998). Gramineas de Bolivia: 1-644. The Royal Botanic Gardens, Kew.
    • Davidse, G. & al. (eds.) (1994). Flora Mesoamericana 6: 1-543. Universidad Nacional Autónoma de México, México, D.F.
    • Brako, L. & Zarucchi, J.L. (1993). Catalogue of the Flowering Plants and Gymnosperms of Peru Monographs in Systematic Botany from the Missouri Botanical Garden 45: i-xl, 1-1286.

    Literature

    Kew Backbone Distributions
    • Acevedo-Rodríguez, P. & Strong, M.T. (2012). Catalogue of seed plants of the West Indies Smithsonian Contributions to Botany 98: 1-1192.
    • Giraldo-Cañas, D. (2011). Catálogo de la familia Poaceae en Colombia Darwiniana 49: 139-247.
    • Zuloaga, F.O., Morrone, O. , Belgrano, M.J., Marticorena, C. & Marchesi, E. (eds.) (2008). Catálogo de las Plantas Vasculares del Cono Sur Monographs in Systematic Botany from the Missouri Botanical Garden 107: 1-3348.
    • Hokche, O., Berry, P.E. & Huber, O. (eds.) (2008). Nuevo Catálogo de la Flora Vascular de Venezuela: 1-859. Fundación Instituto Botánico de Venezuela.
    • 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.
    • Jørgensen, P.M. & León-Yánez, S. (eds.) (1999). Catalogue of the Vascular Plants of Ecuador Monographs in Systematic Botany from the Missouri Botanical Garden 75: i-viii, 1-1181.
    • Renvoize, S.A. (1998). Gramineas de Bolivia: 1-644. The Royal Botanic Gardens, Kew.
    • Davidse, G. & al. (eds.) (1994). Flora Mesoamericana 6: 1-543. Universidad Nacional Autónoma de México, México, D.F.
    • Brako, L. & Zarucchi, J.L. (1993). Catalogue of the Flowering Plants and Gymnosperms of Peru Monographs in Systematic Botany from the Missouri Botanical Garden 45: i-xl, 1-1286.

    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