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  1. Family: Acanthaceae Juss.
    1. Genus: Barleria L.
      1. Barleria aenea I.Darbysh.

        This species is accepted, and its native range is W. Tanzania to NE. Zambia.


    Flora Zambesiaca Acanthaceae (part 2) by Iain Darbyshire, Kaj Vollesen and Ensermu Kelbessa

    Suffruticose perennial with numerous erect stems from a woody rootstock 45–75 cm tall; stems with dense golden-bronze dendritic hairs, many with a long antrorse arm, ± persistent.
    Leaves (ovate-)elliptic or ± obovate, 6.5–12.5 × 2–5.5 cm, base cuneate or attenuate, apex acute or subattenuate, upper surface with pale long hairs, stellate base often falling early or absent, lower surface pale stellate-pubescent, with buff to golden long-armed dendritic hairs on principal veins and margins; lateral veins 5–7 pairs, these and reticulate tertiary venation prominent beneath; petiole 2–10 mm long.
    Inflorescence subglobose, 2.5–4.5 cm in diameter; bracts (ovate-) elliptic, 19.5–34 × 5.5–18 mm, with dense golden-bronze long-armed dendritic hairs on margin and principal veins interspersed with paler stellate hairs; bracteoles ± narrowly (ovate-)elliptic, 21.5–27.5 × 6–10 mm.
    Anterior calyx lobe ovate-elliptic, 19–22 × 7.5–10.5 mm, apex bifid, segments obtusely deltate, 1.5–3 mm long, venation subparallel, inconspicuous, indumentum as bracts but sparse towards base; posterior lobe elliptic, 20–22.5 × 7.5–9.5 mm, apex acute or subattenuate, long-armed stellate hairs restricted to distal third, largely glabrous towards base except for simple hairs on margin; lateral lobes linear-lanceolate, 9.5–11.5 mm long.
    Corolla 55–75 mm long, blue or purple with whitish throat and tube, rarely white (occasional plants in a population), glabrous externally or sparsely pubescent towards apex of lateral lobes; tube 21–25 mm long, cylindrical in proximal half, funnel-shaped above; lobes each 23–36 × 19–30 mm, abaxial lobe offset by 7–12 mm.
    Stamens attached ± midway along corolla tube; filaments (19)26–32 mm long; anthers (4)4.5–5.5 mm long; lateral staminodes 5.5–7 mm long, antherodes to 0.5 mm long.
    Ovary glabrous; style puberulous towards base; stigma 3.2–4 mm long.
    Capsule c.16 mm long, apex attenuate, glabrous.
    Seeds 10–10.5 × c.7 mm.
    Also in SW Tanzania, likely to occur in southeastern D.R. Congo.
    Miombo and chipya woodland including dambo fringes; c.1000 m.
    Conservation notes: Clearly scarce, known from only four collections despite being highly conspicuous; potentially threatened.



    Native to:

    Tanzania, Zambia

    Other Data

    Barleria aenea I.Darbysh. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Bidgood, S. [2655], Tanzania K000799424 holotype
    Bidgood, S. [2655], Tanzania K000799425 isotype


    First published in Kew Bull. 63: 264 (2008)

    Accepted by

    • Darbyshire, I., Vollesen, K. & Kelbessa, E. (2015). Flora Zambesiaca 8(6): 1-314. Royal Botanic Gardens, Kew.
    • Darbyshire, I., Vollesen, K. & Kelbessa, E. (2010). Flora of Tropical East Africa, Acanthaceae (Part 2): 287-756.


    Flora Zambesiaca

    • —Darbyshire in F.T.E.A., Acanthaceae 2: 384 (2010).
    • in Kew Bull. 63: 264, figs.3, 4 (2008).


    Flora Zambesiaca
    Flora Zambesiaca

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    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. Published on the Internet at and
    © Copyright 2017 World Checklist of Selected Plant Families.

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. Published on the Internet at and
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families.