1. Family: Euphorbiaceae Juss.
    1. Genus: Euphorbia L.
      1. Euphorbia dawei N.E.Br.

        This species is accepted, and its native range is DR Congo to Tanzania.

    [FTEA]

    Euphorbiaceae, A. R.-Smith. Flora of Tropical East Africa. 1987

    Habit
    Tree to 15(–25) m. high, with a simple trunk rarely branching, to 60 cm. in diameter and with fissured greyish brown bark marked with 4(–5) vertical rows of persistent spines and pit-scars resulting from fallen branches; branches spreading horizontally, to ± 4 m. long, densely and irregularly rebranching to form a rounded crown; terminal branchlets fleshy, 2–3(–4)-angled, 4–10 cm. wide, deeply and thinly winged, ± constricted at irregular intervals of 5–40 cm. into oblong segments; angles sinuately toothed with teeth 1–2.5 cm. apart.
    Spines
    Spine-shields triangular to 5 × 3 mm., eventually extended to enclose the flowering eye just above; spines 2–6 mm. long; prickles rudimentary, triangular.
    Leaves
    Leaves persistent on young growth, obovate, to 6 × 4 mm.
    Inflorescences
    Cymes 3–7, crowded together, 1 (–2)-forked, with peduncles and cyme-branches 3–4 mm. long; bracts deltoid ± 2.5 × 2.5 mm.
    Cyathia
    Cyathia ± 3 × 6.5 mm., with funnel-shaped involucres; glands transversely elliptic, ± 1.5 × 3 mm., almost touching, yellowish green; lobes transversely elliptic, ± 1.5 × 2 mm., deeply fringed.
    Male
    Male flowers:bracteoles laciniate, plumose; stamens 4.3 mm. long.
    Flowers
    Female flower:perianth 1.5 mm. long irregularly divided into 5–9 short lobes; styles 2 mm. long, joined at the base, apices rugose, bifid. Male flowers:bracteoles laciniate, plumose; stamens 4.3 mm. long.
    Female
    Female flower:perianth 1.5 mm. long irregularly divided into 5–9 short lobes; styles 2 mm. long, joined at the base, apices rugose, bifid.
    Fruits
    Capsule exserted on a curved pedicel to 1 cm. long, subglobose, ± 7 × 10 mm., fleshy, green flushed with red, hardening to become obtusely 3-lobed.
    Seeds
    Seeds subglobose, 4.5 mm. in diameter, smooth.
    Habitat
    Deciduous woodland, sometimes open with grassland; 800–1300 m.
    Distribution
    T1 T4 U2 U4

    Images

    Distribution

    Native to:

    Burundi, Rwanda, Tanzania, Uganda, Zaïre

    Euphorbia dawei N.E.Br. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Dawkins, H.C. [662], Uganda 4076.000
    Bally, P.R.O. [6192], Uganda 5215.000
    Bally, P.R.O. [E 317], Congo 8123.000
    Osmaston, H.A. [1358], Uganda 8121.000
    Harley, R.M. [9498], Tanzania 22136.000
    Dawe [677], Uganda K000252994 Unknown type material
    Bagshawe [1019], Uganda K000252995 Unknown type material

    First published in D.Oliver & auct. suc. (eds.), Fl. Trop. Afr. 6(1): 583 (1912)

    Accepted by

    • Govaerts, R., Frodin, D.G. & Radcliffe-Smith, A. (2000). World Checklist and Bibliography of Euphorbiaceae (and Pandaceae) 1-4: 1-1622. The Board of Trustees of the Royal Botanic Gardens, Kew.

    Literature

    Flora of Tropical East Africa
    • W.J. Eggeling, Indigenous Trees of the Uganda Protectorate, ed. 2: 126 (1952).
    • Robyns, Flore des Spermatophytes du Parc National Albert 1: 480 (1948).
    • N.E. Br. in Flora of Tropical Africa 6(1): 583 (1912).

    Sources

    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