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  1. Family: Fabaceae Lindl.
    1. Genus: Senegalia Raf.
      1. Senegalia erubescens (Welw. ex Oliv.) Kyal. & Boatwr.

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

    [FTEA]

    Leguminosae, J. B. Gillett, R. M. Polhill & B. Verdcourt. Flora of Tropical East Africa. 1971

    Habit
    Shrub or tree 2–7.5 m. high.
    Branches
    Young branchlets ± pubescent.
    Stipules
    Stipules not spinescent.
    Prickles
    Prickles in pairs just below nodes, brown or grey, hooked, up to 4 (–6) mm. long.
    Leaves
    Leaves:petiole glandular or not; rhachis pubescent; glands variable, either between each pair of pinnae, or absent from some, or between top pair only; pinnae 3–7 pairs; leaflets 10–25 pairs, 3–8(–10) mm. long, (0.75–)1–2(–2 .5) mm. wide, obliquely oblong, often slightly falcate or the upper somewhat obovate, slightly pubescent especially on margins, or becoming glabrous, veins somewhat prominent at first beneath, becoming obscure as the leaves age, apex usually oblique, acute or subacute, occasionally obtuse.
    Flowers
    Flowers white or cream or with pink tinge, sessile, in spikes 2–4.5 cm. long on peduncles 0.7–2.4 cm. long; axis pubescent.
    Calyx
    Calyx 2.25–4.5 mm. long, densely pubescent.
    Corolla
    Corolla 2.5–6.5 mm. long, 5-lobed, appressed-pubescent on lobes outside.
    Stamens
    Stamen-filaments 6–10 mm. long; anthers 0.2–0.25 mm. across, glandular at apex.
    Ovary
    Ovary glabrous; stipe very short.
    Fruits
    Pods (Fig. 14/13, p. 52) brown or deep brown, dehiscent, subglabrous except for pubescent margins and stipe, oblong, straight, venose, coriaceous, rounded to acute, rarely acuminate at apex, 3–11 cm. long, 1.2–1.9 cm. wide.
    Habitat
    Deciduous woodland, especially of Brachystegia, locally common; 850–1680 m.
    Distribution
    T4 T7
    [ILDIS]

    International Legume Database and Information Service

    Conservation
    Not Threatened
    Ecology
    Africa: Zambezian woodland
    Habit
    Perennial, Not climbing, Shrub/Tree
    [FZ]

    Leguminosae, J.P.M. Brenan. Flora Zambesiaca 3:1. 1970

    Habit
    Shrub or tree 2-10 m. high; bark grey to yellowish or whitish, with papery flaking or peeling outer layer; young branchlets ± pubescent.
    Stipules
    Stipules not spinescent.
    Prickles
    Prickles in pairs just below the nodes, brown or grey, up to 4(6) mm. long, hooked.
    Leaves
    Leaves: petiole (0·7)1·3-2·5(3) cm. long, glandular or not, gland small, 0·4-1 mm. long; rhachis pubescent; glands variable, either between each pair of pinnae, or absent from some, or between the top pair only; pinnae 3-7 pairs; leaflets 10-27 pairs, 3-8(10) x (0·75)1-2(3) mm., obliquely oblong, often slightly falcate or the upper somewhat obovate, slightly pubescent especially on the margins, or becoming glabrous, veins somewhat prominent at first beneath, becoming obscure as the leaves age, apex usually oblique, acute or subacute, occasionally obtuse.
    Flowers
    Flowers white or cream with pink tinge, sessile, in spikes 2-4·5 cm. long on peduncles 0·7-2·4 cm. long; axis pubescent.
    Calyx
    Calyx 2·25-4·5 mm. long, densely pubescent.
    Corolla
    Corolla 2·5-6·5 mm. long, 5-lobed, ± densely appressed-pubescent on the lobes outside.
    Stamens
    Stamen-filaments 6-10 mm. long; anthers 0·2-0·25 mm. across, glandular at the apex.
    Ovary
    Ovary glabrous; stipe very short.
    Fruits
    Pods brown or deep brown, dehiscent, 3-13 x 1·2-1·9 cm., subglabrous except for pubescent margins and stipe, linear-oblong, straight, venose, coriaceous, rounded to acute, rarely acuminate at the apex; glands usually few and inconspicuous.
    Seeds
    Seeds 7-10 x 8-11 mm., often slightly wider than long; areole 1-2 x 2-4·5 mm., small and wide.

    Images

    Distribution

    Native to:

    Angola, Botswana, Caprivi Strip, Malawi, Mozambique, Namibia, Northern Provinces, Tanzania, Zambia, Zaïre, Zimbabwe

    Synonyms

    Common Names

    English
    Blue thorn, Yellow bark acacia

    Other Data

    Senegalia erubescens (Welw. ex Oliv.) Kyal. & Boatwr. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    May 1, 1996 Long, D.G. [367], Botswana Acacia erubescens K000489533
    Mar 14, 1991 Long, D.G. [246], Botswana Acacia erubescens K000489528
    Jan 29, 1965 Pole-Evans, I.B. [s.n.], Botswana Acacia erubescens K000489529
    Thompson, M.F. [1658], Botswana Acacia erubescens K000489531
    Long, D.G. [186], Botswana Acacia erubescens K000489530
    Smith, P.A. [185], Botswana Acacia erubescens K000489538
    Hansen, O.J. [3200], Botswana Acacia erubescens K000489532
    Mott, P.J. [268], Botswana Acacia erubescens K000489535
    Mott, P.J. [253], Botswana Acacia erubescens K000489536
    Terry, J. [209], Botswana Acacia erubescens K000489534
    de Beer, J.S. [526], Botswana Acacia erubescens K000489537

    Bibliography

    First published in Bot. J. Linn. Soc. 172: 508 (2013)

    Literature

    Kew Backbone Distributions

    • Lock, J.M. (1989). Legumes of Africa a check-list: 1-619. Royal Botanic Gardens, Kew.
    • Brenan, J.P.M. (1970). Flora Zambesiaca 3(1): 1-153. Royal Botanic Gardens, Kew.

    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.

    International Legume Database and Information Service
    International Legume Database and Information Service (ILDIS) V10.39 Nov 2011
    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

    Kew Science Photographs
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

    Plants and People Africa
    Common Names from Plants and People Africa http://www.plantsandpeopleafrica.com/
    © Plants and People Africa http://www.plantsandpeopleafrica.com http://creativecommons.org/licenses/by/3.0/