1. Family: Pedaliaceae R.Br.
    1. Genus: Sesamum L.
      1. Sesamum angolense Welw.

        This species is accepted, and its native range is Uganda to S. Tropical Africa and Namibia.

    [FTEA]

    Pedaliaceae, A. Bruce. Flora of Tropical East Africa. 1953

    Habit
    Simple or branched, decorative, densely leafy, shrubby perennial herbs, 0.8–3 m. high; stems subquadrangular, sulcate, thinly pubescent.
    Leaves
    Leaves subsessile or shortly petiolate, generally discolorous, narrowly oblong, oblong-lanceolate or rarely elliptic, 2–11 cm. long, 0.4–4 cm. broad, margins entire more or less inrolled and scabrid, upper surface glabrescent, lower surface white tomentose, more sparsely so on older leaves so that the glands are visible, cuneate at the base, truncate, rounded emarginate, subacute (rarely acute) and usually apiculate at the apex.
    Flowers
    Flowers pink, red, purple, or pale mauve with deeper markings.
    Calyx
    Calyx usually persistent; lobes lanceolate or ovate-lanceolate, 5–10 mm. long, about 2 mm. broad at the base, acute or acuminate at the apex, pubescent.
    Corolla
    Corolla large, 3.5–7 cm. long, 2–3 cm. in diameter at the throat, thinly to densely pubescent.
    Stamens
    Filaments arising from a band of hairs near the base of the tube; anthers narrowly oblong, 6 mm. long.
    Ovary
    Ovary densely white-appressed-pilose, apex emarginate.
    Fruits
    Capsule subquadrangular, 4-sulcate, 2–2.5 rarely 3 cm. long, 5–6 mm. broad, rather densely pubescent, becoming glabrescent, gradually narrowed into a flattened rather broad beak up to 5 mm. long.
    Seeds
    Seeds not winged, about 2 mm. long, 1.5 mm. broad, faintly rugose on the sides and faces.
    Habitat
    In wooded and upland grassland, by roadsides, in abandoned native cultivation, along river valleys and open woodlands, on black or red loam soil; 350 - 2300 m.
    Distribution
    K5 T1 T4 T6 T8 U4
    [FZ]

    Pedaliaceae, H. D. Ihlenfeldt. Flora Zambesiaca 8:3. 1988

    Habit
    Erect annual or perennial herb, simple or branched, 0.8–3 m. high, malodorous.
    Leaves
    Leaves subsessile or shortly petiolate; lamina cultrate, narrowly oblong, narrowly elliptic or oblanceolate, 2–11 x 0.4–4 cm., margins entire, more or less involute cuneate at the base, truncate, retuse or rarely acute, and usually mucronate at the apex, inferior surface white tomentose.
    Flowers
    Flowers reddish, pink, or pale mauve with darker markings; calyx lobes narrowly lanceolate or narrowly ovate, 5–10 mm. long, about 2 mm. broad at the base, acute or acuminate at the apex, pubescent; corolla large, 3.5–7 cm. long, 2–3 cm. in diam. at the throat.
    Fruits
    Capsule narrowly oblong in lateral view, subquadrangular, 4-sulcate, 18–28 x 5–7 mm., rather densely pubescent, gradually narrowed into a flattened rather broad and short beak (TAB. 23 fig. A).
    Seeds
    Seeds with a double fringe, about 2 x 1.5 mm., faintly rugose on the flanks and faces (TAB. 24 figs. A1, A2).

    Images

    Distribution

    Native to:

    Angola, Burundi, Kenya, Malawi, Mozambique, Namibia, Rwanda, Tanzania, Uganda, Zambia, Zaïre, Zimbabwe

    Sesamum angolense Welw. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 1953 Speke [s.n.], Tanzania K000430496
    Jan 1, 1953 Speke [201], Tanzania K000430497
    Bamps, P. [4239], Angola K001008708
    Dawe, M.J. [395], Angola K001008707
    Welitsch [1645], Angola K000430493 Unknown type material

    First published in Apont.: 588 (1859)

    Accepted by

    • Fischer, E., Rembold, K., Althof, A. & Obholzer, J. (2010). Annotated checklist of the vascular plants of Kakamega forest, Western province, Kenya Journal of East African Natural History 99: 129-226.
    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa an annotated checklist Strelitzia 14: 1-1231. National Botanical Institute, Pretoria.
    • Troupin, G. (ed.) (1985). Flora du Rwanda 3: 1-729. Musee Royal de l'Afrique Centrale.
    • Lewalle, J. (1970). Liste floristique et répartition altitudinale de la flore du Burundi occidental: 1-84. Université officielle de Bujumbura.
    • Bruce, E.A. (1953). Flora of Tropical East Africa, Pedaliaceae: 1-21.

    Literature

    Kew Backbone Distributions
    • Fischer, E., Rembold, K., Althof, A. & Obholzer, J. (2010). Annotated checklist of the vascular plants of Kakamega forest, Western province, Kenya Journal of East African Natural History 99: 129-226.
    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa an annotated checklist Strelitzia 14: 1-1231. National Botanical Institute, Pretoria.
    • Troupin, G. (ed.) (1985). Flora du Rwanda 3: 1-729. Musee Royal de l'Afrique Centrale.
    Flora of Tropical East Africa
    • A.J. Jex-Blake, Some Wild Flowers of Kenya p. 101 (1948), quoad descr. p.p., excl. fig. 81.
    • Stapf in Flora of Tropical Africa 4 (2): 555 (1906).
    • Engl. in Die Pflanzenwelt Ost-Afrikas und der Nachbargebiete, Theile C.: 365 (1895).
    • Welw. in Trans. Linn. Soc. 27: 51 (1869).
    • Welw., Apont. Phyto-Geogr. 588 (1859).

    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

    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