1. Family: Poaceae Barnhart
    1. Genus: Panicum L.
      1. Panicum laetum Kunth

        This species is accepted, and its native range is Cape Verde, Tropical Africa, Madagascar.

    [GB]
    Habit
    Annual. Culms erect, or geniculately ascending; 17-70 cm long. Leaf-sheaths glabrous on surface, or pilose (rarely). Ligule a ciliate membrane. Leaf-blades linear, or lanceolate; parallel-sided; 4-24 cm long; 5-10 mm wide. Leaf-blade surface glabrous. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence a panicle. Panicle open; ovate; 7-20 cm long. Primary panicle branches spreading. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; acute; 2.5-3 mm long; falling entire.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; acute; 2.5-3 mm long; falling entire.
    Glume
    Glumes similar; reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 0.5 length of spikelet; membranous; without keels; 5 -veined. Lower glume apex acute. Upper glume ovate; 1 length of spikelet; membranous; without keels; 7-9 -veined. 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; 9 -veined; acute. Fertile lemma oblong; dorsally compressed; 2-2.5 mm long; indurate; pallid; shiny; without keel. Lemma margins involute. Lemma apex obtuse. Palea involute; indurate.
    Distribution
    Africa: Macaronesia, west tropical, west-central tropical, northeast tropical, east tropical, southern tropical, and western Indian ocean.
    Reference
    Paniceae. FTEA.
    [FWTA]

    Gramineae, W. D. Clayton. Flora of West Tropical Africa 3:2. 1972

    Height
    30–60 cm. high
    Ecology
    Moist soils.
    [FTEA]

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

    Habit
    Annual; culms erect or ascending, 17–70 cm. high.
    Leaves
    Leaf-sheaths glabrous, rarely sparsely pilose or hispid; blades linear-lanceolate, 4–24 cm. long, 5–10 mm. wide, straight at the base, glabrous, acuminate.
    Inflorescences
    Panicle ovate, 7–20 cm. long, much branched, the branching somewhat irregular, spreading at maturity.
    Spikelets
    Spikelets ovate, 2.5–3 mm. long, glabrous, acute; lower glume broadly ovate, 1/2 as long as the spikelet, 5-nerved; upper glume ovate, 7–9-nerved, acute; lower lemma ovate, 9-nerved, sterile, its palea well developed; upper lemma pale and glossy.
    Habitat
    Damp ground on black clay soils; 1000–1300 m.
    Distribution
    Mauritania to Ethiopia T4

    Images

    Distribution

    Native to:

    Angola, Benin, Burkina, Cameroon, Cape Verde, Chad, Eritrea, Gambia, Ghana, Madagascar, Mali, Mauritania, Niger, Nigeria, Senegal, Sudan, Tanzania

    Panicum laetum Kunth appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Dec 1, 1961 Bonnet, E. [s.n.], Mali K000386569
    Dec 1, 1961 Davey, J.T. [68], Mali K000386571
    Kotschy [42], Sudan K000256716 Unknown type material
    Kotschy [42], Sudan K000256715 Unknown type material
    Hagerup, O. [4416], Mali K000386574
    Leclercq, A. [42648], Mali K000386573
    Chevalier, A [9621], Africa K000256736 Unknown type material
    Chevalier, A [2279] K000256737 Unknown type material
    Chevalier, A [9465], Africa K000256738 Unknown type material
    Chevalier, A [9934], Africa K000256740 Unknown type material
    Chevalier, A [2281] K000256739 Unknown type material
    s.coll. [7], Mali K000386572
    Scholz [58], Burkina Faso K000386575
    Scholz [124], Burkina Faso K000386576
    Farrow, R.A. [41], Mali K000386567
    Farrow, R.A. [42], Mali K000386568
    Heath, J. [4], Mali K000386557
    Saadou, M. [712], Burkina Faso K000386577
    Rogeon, J.-.F. [408], Mali K000386570

    First published in Révis. Gramin. 2: t. 113 (1831)

    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.
    • Onana, J.M. (2011). The vascular plants of Cameroon a taxonomic checklist with IUCN assessments: 1-195. National herbarium of Cameroon, Yaoundé.
    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers.
    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Hedberg, I. & Edwards, S. (eds.) (1995). Flora of Ethiopia and Eritrea 7: 1-430. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
    • Hansen, A. & Sunding, P. (1993). Flora of Macaronesia. Checklist of vascular plants. 4. revised edition Sommerfeltia 17: 1-295.
    • Barry, J. P. & Celles, J.S. (1991). Flore de Mauritanie 2: 360-550. Centre Regional de Documentation Pedagogique, Nice.
    • Boudet, G., Lebrun, J.P. & Demange, R. (1986). Catalogue des plantes vasculaires du Mali: 1-465. Etudes d'Elevage et de Médecine Vétérinaire des Pays Tropicaux.
    • Clayton, W.D. & Renvoize, S.A. (1982). Gramineae Flora of Tropical East Africa 3: 451-898.
    • Peyre de Fabregues, B. & Lebrun, J.-P. (1976). Catalogue des Plantes Vascularies du Niger: 1-433. Institut d' Elevage et de Médecine Vétérinaire des Pays Tropicaux, Maisons Alfort.
    • Lebrun, J.P. (1973). Énumération des plantes vasculaires du Sénégal: 1-209. Maisons Alfort: Institut d'élevage et de médecine vétérinaire des pays tropicaux.
    • Hepper, F.N. (ed.) (1972). Flora of West Tropical Africa, ed. 2, 3(2): 277-574.
    • Gillet, H. (1968). Le peuplement végétal du massif de l'Ennedi (Tchad) Mémoires du Muséum National d'Histoire Naturelle. Serie B. Botanique 17: 1-206.

    Literature

    Flora of West Tropical Africa
    • Berhaut, Fl. Sén. ed. 2, 416
    • De Miré & Gillet in J. Agric. Trop. 3: 734.
    • A. Chev. in Rev. Bot. Appliq. 14: 23
    • F.T.A. 9: 700
    • Rev. Gram. 2: 399 (1831)
    Kew Backbone Distributions
    • Onana, J.M. (2011). The vascular plants of Cameroon a taxonomic checklist with IUCN assessments: 1-195. National herbarium of Cameroon, Yaoundé.
    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers.
    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Hedberg, I. & Edwards, S. (eds.) (1995). Flora of Ethiopia and Eritrea 7: 1-430. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
    • Hansen, A. & Sunding, P. (1993). Flora of Macaronesia. Checklist of vascular plants. 4. revised edition Sommerfeltia 17: 1-295.
    • Boudet, G., Lebrun, J.P. & Demange, R. (1986). Catalogue des plantes vasculaires du Mali: 1-465. Etudes d'Elevage et de Médecine Vétérinaire des Pays Tropicaux.
    • Clayton, W.D. & Renvoize, S.A. (1982). Gramineae Flora of Tropical East Africa 3: 451-898.
    • Hepper, F.N. (ed.) (1972). Flora of West Tropical Africa, ed. 2, 3(2): 277-574.
    • Gillet, H. (1968). Le peuplement végétal du massif de l'Ennedi (Tchad) Mémoires du Muséum National d'Histoire Naturelle. Serie B. Botanique 17: 1-206.
    Flora of Tropical East Africa
    • Clayton in Flora of West Tropical Africa, ed. 2, 3: 434 (1972).
    • Kunth, Rév. Gram. 2: 399, fig. 113 (1831).

    Sources

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

    Flora of West Tropical Africa
    Flora of West Tropical 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