1. Family: Rutaceae Juss.
    1. Genus: Zanthoxylum L.
      1. Zanthoxylum rubescens Planch. ex Hook.

        This species is accepted, and its native range is W. Tropical Africa to SW. Kenya and Angola.

    [FTEA]

    Rutaceae, J.O. Kokwaro (University of Nairobi). Flora of Tropical East Africa. 1982

    Habit
    Shrub or small tree to 8 m. high; branches and branchlets with straight or recurved blackish prickles 5–10 mm. long; branchlets reddish.
    Leaves
    Leaves 30–70 cm. long; rhachis glabrous or minutely puberulent, usually unarmed; petiolule 2–5 mm. long or up to 4 cm. on terminal leaflet; leaflets (3–)4–9 pairs, subopposite below, progressively more opposite above, broadly elliptic to oblong-elliptic, 5–29 cm. long, 2.5–15 cm. broad, caudate-acuminate at the apex, cuneate and somewhat oblique at the base, dentate-crenate, papyraceous, glabrous or sometimes puberulent along the nerves, especially the midrib; pellucid glands numerous and scattered but more conspicuous along the margin; midrib prominent beneath; lateral nerves 8–14 pairs.
    Inflorescences
    Inflorescence a terminal pyramidal panicle 20–40 cm. long, tomentulose to puberulent; pedicels 0.5–1 mm. long.
    Calyx
    Sepals 4, 0.3–0.5 mm. long, puberulent.
    Corolla
    Petals oblong or elliptic-oblong, 1.2–2 mm. long, 0.8–1 mm. broad, obtuse, glabrous, creamy white.
    Male
    Male flowers not seen.
    Flowers
    Female flowers:staminodes 4, very short; ovary of a single carpel. Male flowers not seen.
    Female
    Female flowers:staminodes 4, very short; ovary of a single carpel.
    Fruits
    Fruit broadly ellipsoid or globose, 5–7 mm. in diameter, orange-red, foveolate and with light red pellucid glands; stipe 2–2.5 mm. long.
    Seeds
    Seed globose, 5–5.7 mm. in diameter, shiny black.
    Habitat
    Rain-forest or riverine; 900–1800 m.
    Distribution
    K5 T4 T6 T7 U2 U4 Guinea Bissau to Zaire and Angola
    [FWTA]

    Rutaceae, Hutchinson and Dalziel. Flora of West Tropical Africa 1:2. 1958

    Habit
    An understorey forest tree, to 30 ft. high, armed with black thorns
    Flowers
    Flowers greenish or whitish, numerous in large panicles.

    Images

    Distribution

    Native to:

    Angola, Cameroon, Central African Repu, Congo, Ghana, Guinea-Bissau, Gulf of Guinea Is., Ivory Coast, Kenya, Liberia, Nigeria, Sierra Leone, Tanzania, Uganda, Zaïre

    Zanthoxylum rubescens Planch. ex Hook. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Mar 1, 2005 Kenneth Tah [286], Cameroon K000008168
    Mar 1, 2005 Kenneth Tah [286], Cameroon K000746005
    Dec 1, 2003 Cheek, M. [10469], Cameroon K000746380
    Dec 1, 2003 Onana, J.-M. [2024], Cameroon K000746378
    Dec 1, 2003 Onana, J.-M. [2024], Cameroon K000746379
    Oct 1, 2003 Lane, P. [511], Cameroon K000198303
    Oct 1, 2003 Cheek, M. [7731], Cameroon K000198302
    Oct 1, 2003 Etuge, M. [1516], Cameroon K000198301
    Oct 1, 2003 Etuge, M. [2041], Cameroon K000198304
    Oct 1, 2003 Etuge, M. [2030], Cameroon K000198305
    Dec 1, 2000 Cheek, M. [8611], Cameroon K000337771
    Mar 1, 1999 Etuge, M. [3359], Cameroon K000337772
    Mar 1, 1999 Etuge, M. [3359], Cameroon K000337773
    Onochie, C.F.A. [FHI 30885], Cameroon K000094308
    Chevalier, A. [17423], Ivory Coast K000199428 Unknown type material
    unknown [181], Sierra Leone K000199429
    Vogel [181], Sierra Leone K000199430
    Vogel [181], Sierra Leone K000199431
    Vogel [15], Ghana K000199432
    Vogel [15], Ghana K000199433
    Ujor, E.U. [FHI 29278], Cameroon K000094301
    Ujor, E.U. [FHI 29278], Cameroon K000094302
    Brenan, J.P.M. [9035], Nigeria Fagara rubescens 21867.000
    Onochie, C.F.A. [F.H.I. 40274], Nigeria Fagara rubescens 29496.000

    First published in Niger Fl.: 270 (1849)

    Accepted by

    • Kalema, J. & Beentje, H. (2012). Conservation checklist of the trees of Uganda: 1-235. Kew Publishing, Royal Botanic Gardens, Kew.
    • Figueiredo, E., Paiva, J., Stévart, T., Oliveira, F. & Smith, G.F. (2011). Annotated catalogue of the flowering plants of São Tomé and Príncipe Bothalia, A Journal of Botanical Research 41: 41-82.
    • 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.
    • Lejoy, J., Ndjele, M.-B. & Geerinck, D. (2010). Catalogue-flore des plantes vasculaires des districts de Kisangani et de la Tshopo (RD Congo) Taxonomania 30: 1-307.
    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • Catarino, L., Martins, E.S., Diniz, M.A. & Pinto-Basto, M.F. (2006). Check-list da flora vascular do parque natural das Lagos de Cufada (Guiné-Bissau) Garcia de Orta, Série de Botânica 17: 97-141.
    • Kokwaro, J.O. (1982). Flora of Tropical East Africa, Rutaceae: 1-52.

    Literature

    Kew Backbone Distributions
    • Figueiredo, E., Paiva, J., Stévart, T., Oliveira, F. & Smith, G.F. (2011). Annotated catalogue of the flowering plants of São Tomé and Príncipe Bothalia, A Journal of Botanical Research 41: 41-82.
    • Meyer, F.K. (2011). Beiträge zur Flora von Albanien Haussknechtia, Beih. 15: 1-220.
    • 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.
    • Lejoy, J., Ndjele, M.-B. & Geerinck, D. (2010). Catalogue-flore des plantes vasculaires des districts de Kisangani et de la Tshopo (RD Congo) Taxonomania 30: 1-307.
    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • Catarino, L., Martins, E.S., Diniz, M.A. & Pinto-Basto, M.F. (2006). Check-list da flora vascular do parque natural das Lagos de Cufada (Guiné-Bissau) Garcia de Orta, Série de Botânica 17: 97-141.
    • Hutchinson, J., Dalziel, J.M. & Keay, R.W.J. (1954-1958). Flora of West Tropical Africa, ed. 2, 1: 1-828.
    Flora of Tropical East Africa
    • Hook. f., Fl. Nigrit.: 270 (1849).

    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

    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 2020. 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 2020. 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