1. Family: Rutaceae Juss.
    1. Genus: Zanthoxylum L.
      1. Zanthoxylum mildbraedii (Engl.) P.G.Waterman

        This species is accepted, and its native range is E. Central Tropical Africa to SW. Kenya.

    [FTEA]

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

    Habit
    Tree 12–30 m. high; trunk usually straight and unbranched for several m. from the base, averaging 30 cm. in diameter at maturity, armed with woody spines; bark generally smooth, yellowish brown and aromatic; branchlets armed with small black conical prickles 1.5–3 mm. long and frequently upturned or upcurved.
    Leaves
    Leaves 15–37 cm. long; rhachis unarmed, rusty puberulent; petiolule (0–)0.5–2 or rarely up to 13 mm. on the terminal leaflet; leaflets 5–11 pairs, subopposite towards the base, progressively more opposite above, oblong to oblong-elliptic, 3–10.5 cm. long, 1.5–3.5 cm. broad, caudate to acuminate at the apex, cuneate and somewhat oblique* at the base, obscurely crenate, subcoriaceous, glabrous except the usually sparsely puberulent nerves beneath, with distinct pellucid glands; lateral nerves 8–16 pairs.
    Inflorescences
    Inflorescences terminal and axillary, corymbose-paniculate, 5–11 cm. long, sometimes aculeate, with subumbellate flowers, rusty puberulent; bracts ± 1 mm. long; pedicels 1.5–2 mm. long.
    Calyx
    Sepals 4, 0.5–0.7 mm. long, glabrous.
    Corolla
    Petals 4, oblong to elliptic-oblong, 1.6–2.2 mm. long, 1–1.4 mm. broad, obtuse, white, glabrous.
    Male
    Male flowers:stamens 4, 2–3.2 mm. long; vestigial pistil ± 1 mm. long on a short gynophore ± 0.5 mm. long.
    Flowers
    Female flowers not seen. Male flowers:stamens 4, 2–3.2 mm. long; vestigial pistil ± 1 mm. long on a short gynophore ± 0.5 mm. long.
    Female
    Female flowers not seen.
    Fruits
    Fruit of paired rhomboid follicles 8–10 mm. long, 6–7 mm. in diameter, with a short beak, glandular-foveolate, each pair on a short common stipe but individually sessile, sometimes one of the pair rudimentary.
    Seeds
    Seeds shiny black, 4–5 mm. in diameter.
    Habitat
    Rain-forest; 900–1900 m.
    Distribution
    K5 U2 U4

    Distribution

    Native to:

    Kenya, Rwanda, Uganda, Zaïre

    Zanthoxylum mildbraedii (Engl.) P.G.Waterman appears in other Kew resources:

    First published in Taxon 23: 364 (1975)

    Accepted by

    • Kalema, J. & Beentje, H. (2012). Conservation checklist of the trees of Uganda: 1-235. Kew Publishing, Royal Botanic Gardens, Kew.
    • 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.
    • Kokwaro, J.O. (1982). Flora of Tropical East Africa, Rutaceae: 1-52.

    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.
    Flora of Tropical East Africa
    • Waterm. in Taxon 24: 364 (1975).

    Sources

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