1. Family: Poaceae Barnhart
    1. Genus: Panicum L.
      1. Panicum issongense Pilg.

        This species is accepted, and its native range is South Sudan to E. Tropical Africa.

    [GB]
    Habit
    Perennial. Culms decumbent, or rambling; 60-100 cm long. Ligule a ciliate membrane. Leaf-blade base cordate. Leaf-blades lanceolate, or ovate; 8-16 cm long; 15-35 mm wide. Leaf-blade venation with distinct cross veins. Leaf-blade surface glabrous, or pilose. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence a panicle. Panicle open; ovate; 15-35 cm long. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; acute; 2-2.5 mm long; falling entire. Rhachilla internodes elongated between glumes.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; acute; 2-2.5 mm long; falling entire. Rhachilla internodes elongated between glumes.
    Glume
    Glumes similar; reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 0.75-1 length of spikelet; membranous; without keels; (1-)3 -veined. Lower glume surface glabrous, or pubescent. Lower glume apex acute, or acuminate. Upper glume ovate; 1 length of spikelet; membranous; without keels; 5 -veined. Upper glume surface glabrous, or pubescent. Upper glume apex acute.
    Florets
    Basal sterile florets barren; with palea. Lemma of lower sterile floret similar to upper glume; ovate; 1 length of spikelet; membranous; 5 -veined; glabrous, or pubescent; acute. Fertile lemma oblong; dorsally compressed; 1.5-2 mm long; indurate; pallid; shiny; without keel. Lemma margins involute. Lemma apex obtuse. Palea involute; indurate.
    Distribution
    Africa: east tropical.
    Reference
    Paniceae. FTEA.
    [FTEA]

    Gramineae, W. D. Clayton, S. M. Phillips & S. A. Renvoize. Flora of Tropical East Africa. 1974

    Habit
    Perennial; culms 60–200 cm. long, branched, geniculately ascending or trailing.
    Leaves
    Leaf-blades lanceolate to narrowly ovate, 8–16 cm. long, 15–35 mm. wide, cordate at the base, cross-veins present, glabrous or pilose, acuminate.
    Inflorescences
    Panicle broadly ovate, 15–35 cm. long, much branched.
    Spikelets
    Spikelets ovate, 2–2.5 mm. long, glabrous to pubescent, acute; lower glume ovate, 3/4 to as long as the spikelet, (1–)3-nerved, acute to acuminate, separated from the rest of the spikelet by a short internode; upper glume ovate, 5-nerved, acute; lower lemma 5-nerved, sterile, its palea well developed; upper lemma pale, shining.
    Habitat
    Forest shade; 900–1800 m.
    Distribution
    K5 T3 T6 T7 U2 U4 not known elsewhere

    Images

    Distribution

    Native to:

    Kenya, Sudan, Tanzania, Uganda

    Panicum issongense Pilg. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Schlieben, H.J. [2130], Tanzania K000282429 isotype
    Schlieben, H.J. [2130], Tanzania K000282430 isotype

    First published in Notizbl. Bot. Gart. Berlin-Dahlem 15: 706 (1942)

    Accepted by

    • Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. 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.
    • Clayton, W.D. & Renvoize, S.A. (1982). Gramineae Flora of Tropical East Africa 3: 451-898.

    Literature

    Kew Backbone Distributions
    • Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. Kew publishing, Royal Botanic Gardens, Kew.
    • Clayton, W.D. & Renvoize, S.A. (1982). Gramineae Flora of Tropical East Africa 3: 451-898.
    Flora of Tropical East Africa
    • D.M. Napper, Grasses of Tanganyika: 59 (1965).
    • Pilg. in Notizblatt des Botanischen Gartens und Museums zu Berlin-Dahelm 15: 706 (1942).

    Sources

    Flora of Tropical East Africa
    Flora of Tropical East Africa
    http://creativecommons.org/licenses/by-nc-sa/3.0

    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