1. Family: Poaceae Barnhart
    1. Genus: Dichanthelium (Hitchc. & Chase) Gould
      1. Dichanthelium transiens (Swallen) Sánchez-Ken

        This species is accepted, and its native range is Texas to Guatemala.

    [GB]
    Habit
    Perennial; caespitose. Rootstock evident. Culms erect, or geniculately ascending; 15-50 cm long. Culm-internodes distally pilose. Culm-nodes pubescent. Lateral branches ample; arising from mid culm and upper culm. Leaves all alike. Leaf-sheaths pilose; with tubercle-based hairs; outer margin hairy. Ligule a ciliate membrane; 1 mm long. Leaf-blade base broadly rounded. Leaf-blades ascending, or spreading; lanceolate; 5-9 cm long; 3-6 mm wide. Leaf-blade surface glabrous, or puberulous. Leaf-blade margins ciliate; hairy at base.
    Inflorescences
    Inflorescence a panicle; terminal and axillary. Peduncle 5-20 cm long. Panicle open; ovate; 3-6 cm long. Primary panicle branches ascending, or spreading. Panicle axis pubescent. Panicle branches pubescent; pubescent in axils. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 2-12 mm long.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 3.5-3.7 mm long; 1.4 mm wide; falling entire. Rhachilla internodes elongated between glumes.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 3.5-3.7 mm long; 1.4 mm wide; falling entire. Rhachilla internodes elongated between glumes.
    Glume
    Glumes dissimilar; shorter than spikelet; thinner than fertile lemma. Lower glume ovate; not clasping; 0.4-0.5 length of spikelet; membranous; without keels; 3-5 -veined. Lower glume apex acuminate. Upper glume ovate; 0.9 length of spikelet; membranous; without keels; 9-11 -veined. Upper glume lateral veins transversely connected at apex. Upper glume surface pubescent; with tubercle-based hairs. Upper glume apex obtuse.
    Florets
    Basal sterile florets barren; with palea. Lemma of lower sterile floret similar to upper glume; elliptic; 1 length of spikelet; membranous; 9 -veined; pubescent; with tubercle-based hairs; acute. Palea of lower sterile floret 0.33 length of lemma. Fertile lemma elliptic; dorsally compressed; 3 mm long; 1.3 mm wide; indurate; shiny; without keel. Lemma margins involute. Lemma apex acute; scabrous. Palea involute; indurate.
    Distribution
    North America: south-central USA. South America: Mesoamericana.
    Reference
    Paniceae. Chase 1994.

    Images

    Distribution

    Native to:

    Guatemala, Mexico Northeast, Mexico Southwest, Texas

    Dichanthelium transiens (Swallen) Sánchez-Ken appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Reverchon, J. [1620], Texas Panicum pedicellatum K000674486

    First published in Phytotaxa 307(1): 30 (2017)

    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.
    • 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