1. Family: Poaceae Barnhart
    1. Genus: Panicum L.
      1. Panicum pleianthum Peter

        This species is accepted, and its native range is Kenya to Mozambique, Madagascar.

    [FTEA]

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

    Habit
    Annual or short-lived perennial; culms 20–60 cm. long, decumbent.
    Leaves
    Leaf-sheaths ciliately fringed; blades lanceolate, 5–10 cm. long, 6–10 mm. wide, asymmetrically narrowed at the base, often prominently distichous, pilose, acuminate.
    Inflorescences
    Panicle oblong or obovate, 4–10 cm. long, much branched, compact.
    Spikelets
    Spikelets narrowly ovate, 1.7–2.2 mm. long, asymmetrical, glabrous or sparsely pilose, apiculate; lower glume 1/2 as long as the spikelet, ovate, 3–5-nerved, separated from the rest of the spikelet by a short internode; upper glume 5-nerved; lower lemma 5-nerved, sterile, its palea poorly developed; upper floret pale or dark, shining.
    Habitat
    Forest shade; 50–550 m.
    Distribution
    K7 T3 T6 T8
    [GB]
    Habit
    Annual, or perennial; short-lived. Culms decumbent; 20-60 cm long. Leaves distichous. Leaf-sheaths outer margin hairy. Ligule a ciliate membrane. Leaf-blade base asymmetrical. Leaf-blades lanceolate; tapering towards sheath; 5-10 cm long; 6-10 mm wide. Leaf-blade surface pilose. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence a panicle. Panicle open; oblong, or obovate; dense; 4-10 cm long. Primary panicle branches profusely divided. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; gibbous; 1.7-2.2 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; gibbous; 1.7-2.2 mm long; falling entire. Rhachilla internodes elongated between glumes.
    Glume
    Glumes similar; reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 0.5 length of spikelet; membranous; without keels; 3-5 -veined. Lower glume surface glabrous, or pilose. Lower glume apex acute. Upper glume ovate; 1 length of spikelet; membranous; without keels; 5 -veined. Upper glume surface glabrous, or pilose. Upper glume apex acute.
    Florets
    Basal sterile florets barren; without significant palea. Lemma of lower sterile floret similar to upper glume; ovate; 1 length of spikelet; membranous; 5 -veined; glabrous, or pilose; acute. Fertile lemma oblong; dorsally compressed; 1.5-2 mm long; indurate; pallid, or dark brown; shiny; without keel. Lemma margins involute. Lemma apex obtuse. Palea involute; indurate.
    Distribution
    Africa: east tropical and southern tropical.
    Reference
    Paniceae. FTEA.
    [FZ]

    Gramineae, W. D. Clayton. Flora Zambesiaca 10:3. 1989

    Habit
    Annual or short-lived perennial.
    Culms
    Culms 20–60 cm. long, decumbent.
    Leaf sheaths
    Leaf sheaths ciliately fringed, laminae 5–10 cm. long and 6–10 mm. wide, lanceolate, pilose, acuminate.
    Inflorescences
    Panicle 4–10 cm. long, oblong or obovate, much branched, dense, the branches ascending or contracted and appressed.
    Spikelets
    Spikelets 1.7–2.2 mm. long, obovate, glabrous or sparsely pilose, apiculate; inferior glume 1/2 as long as the spikelet, 3–5-nerved, separated from the superior glume by a short internode; superior glume 5-nerved; inferior lemma 5-nerved, its palea poorly developed, sterile; superior lemma and palea glossy.
    [GB]
    Habit
    Perennial. Culms prostrate; 40-50 cm long. Lateral branches ample. Leaf-sheaths pilose; with tubercle-based hairs. Ligule an eciliate membrane. Leaf-blades lanceolate; 5-7 cm long; 5-8 mm wide. Leaf-blade surface puberulous (above), or pilose (below). Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence a panicle. Panicle contracted; lanceolate; 6-7 cm long; 3 cm wide. Primary panicle branches appressed. Panicle branches capillary; glabrous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 1.5-3 mm long.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets obovate; laterally compressed; compressed strongly; gibbous; obtuse; 2 mm long; falling entire.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets obovate; laterally compressed; compressed strongly; gibbous; obtuse; 2 mm long; falling entire.
    Glume
    Glumes similar; shorter than spikelet; thinner than fertile lemma. Lower glume ovate; 0.9-1 mm long; 0.5 length of spikelet; membranous; without keels; 3 -veined. Lower glume apex acute. Upper glume oblong; gibbous; 1.6-1.7 mm long; 0.75 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; oblong; 1 length of spikelet; membranous; 5 -veined; prominently veined; obtuse. Fertile lemma obovate; laterally compressed; gibbous; 1.5 mm long; indurate; yellow; without keel. Lemma margins involute. Palea involute; indurate.
    Distribution
    Africa: western Indian ocean.
    Reference
    Paniceae. Camus 2007.

    Images

    Distribution

    Native to:

    Kenya, Madagascar, Mozambique, Tanzania

    Panicum pleianthum Peter appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Drummond, R.B. [1129], Kenya K000489750
    Drummond, R.B. [3831], Kenya K000489748
    Bogdan, A. [AB3913], Kenya K000489754
    Bogdan, A. [AB5343], Kenya K000489752
    Robertson, S.A. [3395], Kenya K000489749
    Verdcourt, B. [3916], Kenya K000489751
    Bjornstad, A. [AB235], Kenya K000489746
    Luke, W.R.Q. [4710], Kenya K000489743
    Napper, D.M. [1360], Kenya K000489753
    Magogo, F.C. [236], Kenya K000489747
    Magogo, F.C. [720], Kenya K000489745
    Allan, J.A. [130], Kenya K000489757
    Spjut, R.W. [2742], Kenya K000489744
    Moomaw, J.C. [947B], Kenya K000489755

    First published in Repert. Spec. Nov. Regni Veg. Beih. 40(1 Anh.): 47 (1930)

    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. (1989). Flora Zambesiaca 10(3): 1-231. 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
    • D.M. Napper, Grasses of Tanganyika: 59 (1965).
    • A.V. Bogdan, A Revised List of Kenya Grasses p. 37 (1958).
    • Peter, Flora von Deutsch-Ostafrika 1, Anh.: 47 (1930).

    Sources

    Flora Zambesiaca
    Flora Zambesiaca
    http://creativecommons.org/licenses/by-nc-sa/3.0

    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