1. Family: Poaceae Barnhart
    1. Genus: Panicum L.
      1. Panicum vollesenii Renvoize

        This species is accepted, and its native range is Tanzania.

    [FTEA]

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

    Habit
    Perennial; culms up to 150 cm. long, wiry, trailing or scrambling, branched, many-noded, pallid.
    Leaves
    Leaf-blades narrowly lanceolate, 4.5–9 cm. long, 5–7 mm. wide, cordate at the base, flat, stiff and spreading, glabrous and somewhat glaucous, antrorsely scabrid on the margins, acuminate.
    Inflorescences
    Panicle ovate, 9–14 cm. long, moderately branched, the branches stiff and spreading, sparsely hirsute on the axis, otherwise glabrous.
    Spikelets
    Spikelets oblong, 2.8–3 mm. long, glabrous; lower glume ovate, 1/3 the length of the spikelet, 3-nerved; upper glume ovate-oblong, 5-nerved, acute; lower lemma ovate, 5-nerved, male, its palea well developed; upper lemma tessellate, pale.
    Habitat
    Riverine forest; 125 m.
    Distribution
    only known from the type T8
    [GB]
    Habit
    Perennial. Culms rambling; 100-150 cm long; wiry. Ligule a ciliate membrane. Leaf-blade base cordate. Leaf-blades spreading; lanceolate; 4.5-9 cm long; 5-7 mm wide; stiff; glaucous. Leaf-blade margins scabrous. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence a panicle. Panicle open; ovate; 9-14 cm long. Primary panicle branches spreading. Panicle branches stiff; pilose (sparsely on axis). Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; dorsally compressed; obtuse; 2.8-3 mm long; falling entire.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; dorsally compressed; obtuse; 2.8-3 mm long; falling entire.
    Glume
    Glumes dissimilar; reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 0.33 length of spikelet; membranous; without keels; 3 -veined. Lower glume apex acute. Upper glume ovate; 1 length of spikelet; membranous; without keels; 5 -veined. Upper glume apex acute.
    Florets
    Basal sterile florets male; with palea. Lemma of lower sterile floret similar to upper glume; ovate; 1 length of spikelet; membranous; 5 -veined; acute. Fertile lemma oblong; dorsally compressed; 2.8-3 mm long; indurate; pallid; without keel. Lemma surface reticulate. Lemma margins involute. Lemma apex obtuse. Palea involute; indurate.
    Distribution
    Africa: east tropical.
    Reference
    Paniceae. FTEA.

    Images

    Distribution

    Native to:

    Tanzania

    Panicum vollesenii Renvoize appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Vollesen, K. [3871], Tanzania K000255557 isotype

    First published in Kew Bull. 35: 202 (1980)

    Accepted by

    • 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
    • Clayton, W.D. & Renvoize, S.A. (1982). Gramineae Flora of Tropical East Africa 3: 451-898.
    Flora of Tropical East Africa
    • Renv. in Kew Bulletin 35: 202 (1980).

    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