1. Family: Euphorbiaceae Juss.
    1. Genus: Euphorbia L.
      1. Euphorbia abyssinica J.F.Gmel.

        This species is accepted, and its native range is NE. Sudan to Somalia.

    [FTEA]

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

    Habit
    Tree to 30 m. high, with a simple trunk to ± 90 cm. in diameter and roughened grey bark; primary branches ascending, rebranching irregularly and ± densely at the apices to form a spreading rounded crown; terminal branchlets fleshy, 3(–4)-angled, 5–17 cm. wide, deeply and thinly winged with wings 2–7 cm. wide, ± constricted at irregular intervals into oblong segments 15–40 cm. long; angles straight to sinuately toothed, with teeth 1.5–3 cm. apart.
    Spines
    Spine-shields rounded, to 5 mm. in diameter, eventually extended to 5 mm. above the spines to enclose the flowering eye; spines stout, 1–3 mm. long; prickles absent or vestigial; spine-shields and spines becoming corky and eventually disintegrating.
    Leaves
    Leaves persistent for some time on young growth, obovate, to 15 × 6 cm., fleshy, midrib keeled on the lower surface, base tapering to a petiole ± 1 cm. long.
    Inflorescences
    Cymes 1–3 in a horizontal line or occasionally 4 crowded together, 1-forked, with stout peduncles, and cyme-branches 3–4 mm. long arranged in a vertical plane; bracts rounded, ± 4 × 7 mm.
    Cyathia
    Cyathia ± 4 × 7 mm., with cup-shaped involucres; glands transversely elliptic, ± 2 × 4 mm., with undulate margin, not quite touching, yellow; lobes transversely elliptic, ± 2 × 3.5 mm.
    Flowers
    Male flowers:bracteoles spathulate, plumose; stamens 6 mm. long. Female flower:perianth irregularly divided into 5–12 lanceolate lobes with toothed margins, to 6 mm. long; styles 3.5 mm. long, joined at the base, apices thickened, ± bifid.
    Male
    Male flowers:bracteoles spathulate, plumose; stamens 6 mm. long.
    Female
    Female flower:perianth irregularly divided into 5–12 lanceolate lobes with toothed margins, to 6 mm. long; styles 3.5 mm. long, joined at the base, apices thickened, ± bifid.
    Fruits
    Capsule on a stout pedicel 3 mm. long, subglobose, to 12 × 16 mm., fleshy, red, hardening before dehiscence to become obtusely 3-lobed with woody walls 2–3 mm. thick.
    Seeds
    Seeds subglobose, slightly compressed laterally, 4.5 mm. in diameter, yellowish brown speckled with black, smooth.
    Habitat
    On well-drained rocky slopes with montane evergreen forest; 1800–2500 m.
    Distribution
    K2 K3 K4 K5 K6 T3 T4 T7 U1 U3

    Images

    Distribution

    Native to:

    Djibouti, Eritrea, Ethiopia, Somalia, Sudan

    Euphorbia abyssinica J.F.Gmel. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 2012 s.coll. [s.n.] K001044594 holotype
    Jan 1, 2012 s.coll. [s.n.] K001044593 holotype
    Jan 1, 2012 s.coll. [s.n.] K001044591 holotype
    Jan 1, 2012 s.coll. [s.n.] K001044592
    Apr 1, 1984 Schweinfurth, G. [1351], Eritrea K000252877
    Apr 1, 1984 Schweinfurth, G. [1351], Eritrea K000252878
    Bally, P.R.O. [7106], Eritrea 2019.000
    Bally, P.R.O. [10426], Ethiopia 33295.000
    Andrews, F.W., Sudan 15735.000
    Andrews, F.W., Sudan 22005.000
    Horn, Z., Eritrea 18937.000
    Stowes, W. [B. 7104], Eritrea 22006.000
    Stowes, W. [Bally 7104], Eritrea 29047.221
    Schimper [934], Ethiopia K000252879
    Schimper [934], Ethiopia K000252880
    Schimper [793], Ethiopia K000252881
    Schweinfurth [s.n.], Eritrea K000252876
    Dawkins, H.C. [D775], Uganda Euphorbia obovalifolia 4120.000
    Bally, P.R.O. [E. 252], Ethiopia Euphorbia obovalifolia 2089.000
    Bally, P.R.O. [E253], Ethiopia Euphorbia obovalifolia 4118.000
    Scott, H., Ethiopia Euphorbia obovalifolia 22009.000
    Friis, I. [160], Ethiopia Euphorbia obovalifolia 34184.000

    First published in Syst. Nat. ed. 13[bis]: 759 (1791)

    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.
    • 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.

    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 2018. 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 2018. 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