1. Family: Poaceae Barnhart
    1. Genus: Panicum L.
      1. Panicum tenuifolium Hook. & Arn.

        This species is accepted, and its native range is Hawaiian Islands.

    [GB]
    Habit
    Perennial; caespitose. Culms 35-120 cm long. Culm-internodes distally pilose; with tubercle-based hairs. Culm-nodes glabrous, or bearded. Lateral branches lacking. Leaves cauline. Leaf-sheaths pilose; with tubercle-based hairs. Ligule a ciliate membrane; 0.3-1.1 mm long. Leaf-blades flat, or involute; 5-20 cm long; 1-5(-7) mm wide. Leaf-blade surface glabrous, or pilose; with tubercle-based hairs.
    Inflorescences
    Inflorescence a panicle. Panicle open; ovate; 5-30 cm long. Primary panicle branches ascending, or spreading; 1 -nate. Panicle branches scabrous; glabrous, or pilose; pubescent in axils, or bearded in axils. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; acute, or acuminate; 2.1-3.6 mm long; falling entire.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; acute, or acuminate; 2.1-3.6 mm long; falling entire.
    Glume
    Glumes reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 1 length of spikelet; membranous; without keels; 5-7 -veined. Lower glume apex acute, or acuminate. Upper glume elliptic; 1 length of spikelet; membranous; without keels; 7 -veined. Upper glume apex acute.
    Florets
    Basal sterile florets barren; with palea. Lemma of lower sterile floret similar to upper glume; elliptic; 1 length of spikelet; membranous; 5-7 -veined; acute. Palea of lower sterile floret 0.33-0.5 length of lemma. Fertile lemma lanceolate, or elliptic; dorsally compressed; 1.7-1.8 mm long; indurate; shiny; without keel. Lemma margins involute. Lemma apex acute. Palea involute; indurate.
    Flowers
    Anthers 3; 1-1.2 mm long.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    Pacific: north-central.
    Reference
    Paniceae. Wagner 1993.

    Images

    Distribution

    Panicum tenuifolium Hook. & Arn. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Beechey, F. W. [s.n.], USA K000674461 Unknown type material

    First published in Bot. Beechey Voy.: 100 (1832)

    Accepted by

    • Clayton, W.D. & Snow, N. (2010). A key to Pacific Grasses: 1-107. Kew Publishing, Royal Botanic Gardens, Kew.
    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
    • 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
    • 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 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