1. Family: Poaceae Barnhart
    1. Genus: Dichanthelium (Hitchc. & Chase) Gould
      1. Dichanthelium dichotomum (L.) Gould

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

    [GB]
    Habit
    Perennial; caespitose. Rootstock evident. Culms slender; 20-80(-100) cm long. Culm-nodes glabrous, or bearded. Lateral branches fastigiate. Leaves basal and cauline; heterophyllous with a basal winter rosette. Leaf-sheaths outer margin hairy. Ligule an eciliate membrane, or a fringe of hairs; 0.2-1 mm long. Leaf-blades 4-12(-15) cm long; 3-10(-13) mm wide. Leaf-blade surface glabrous, or pilose. Leaf-blade margins glabrous, or ciliate; hairy at base. Leaf-blade apex attenuate.
    Inflorescences
    Inflorescence a panicle. Panicle open; oblong; 3-8(-10) cm long. Primary panicle branches spreading. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong, or obovate; dorsally compressed; 1.5-2.4 mm long; falling entire.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong, or obovate; dorsally compressed; 1.5-2.4 mm long; falling entire.
    Glume
    Glumes dissimilar; shorter than spikelet; thinner than fertile lemma. Lower glume ovate; 0.25-0.33 length of spikelet; membranous; without keels; 3 -veined. Lower glume apex obtuse. Upper glume oblong; 0.7-0.8 length of spikelet; membranous; without keels; 7-9 -veined. Upper glume surface glabrous, or puberulous. Upper glume apex obtuse.
    Florets
    Basal sterile florets barren; with palea. Lemma of lower sterile floret similar to upper glume; oblong; 1 length of spikelet; membranous; 7-9 -veined; glabrous, or puberulous; obtuse. Fertile lemma oblong; dorsally compressed; 1.5-2.4 mm long; indurate; pallid; without keel. Lemma margins involute. Lemma apex obtuse. Palea involute; indurate.
    Distribution
    North America: eastern Canada, north-central USA, northeast USA, south-central USA, southeast USA, and Mexico. South America: Mesoamericana and Caribbean.
    Reference
    Paniceae. Gould.

    Images

    Distribution

    Native to:

    Alabama, Arkansas, Bahamas, Belize, Connecticut, Cuba, Delaware, District of Columbia, Dominican Republic, Florida, Georgia, Guatemala, Haiti, Honduras, Illinois, Indiana, Iowa, Jamaica, Kentucky, Louisiana, Maine, Maryland, Masachusettes, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Southeast, Mexico Southwest, Michigan, Minnesota, Mississippi, Missouri, New Brunswick, New Hampshire, New Jersey, New York, Nicaragua, North Carolina, Ohio, Oklahoma, Ontario, Pennsylvania, Puerto Rico, Rhode I., South Carolina, Tennessee, Texas, Venezuela, Vermont, Virginia, West Virginia, Wisconsin

    Dichanthelium dichotomum (L.) Gould appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Nash, G. V. [2500], Florida Panicum sphagnicola K000674407
    Nash, G. V. [925], Florida Panicum albomarginatum K000674410
    Fernald, M. L. [6484], Virginia Panicum lucidum var. opacum K000674408

    First published in Brittonia 26: 59 (1974)

    Not accepted by

    • Govaerts, R. (2000). World Checklist of Seed Plants Database in ACCESS D: 1-30141. [Cited as Panicum dichotomum.]

    Literature

    Kew Backbone Distributions
    • López Patiño, E.J., Szeszko, D.R., Rascala Pérez, J. & Beltrán Retis, A.S. (2012). The flora of the Tenacingo-Malinalco-Zumpahuacán protected natural area, state of Mexico, Mexico Harvard Papers in Botany 17: 65-167.
    • Acevedo-Rodríguez, P. & Strong, M.T. (2012). Catalogue of seed plants of the West Indies Smithsonian Contributions to Botany 98: 1-1192.
    • 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.
    • 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.
    • Davidse, G. & al. (eds.) (1994). Flora Mesoamericana 6: 1-543. Universidad Nacional Autónoma de México, México, D.F.

    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