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  1. Family: Acanthaceae Juss.
    1. Genus: Barleria L.
      1. Barleria kaessneri S.Moore

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


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

    Suffrutex with 1 to several erect, ascending or procumbent stems 10–45 cm long from a woody rootstock; stems hispid, hairs (buff-)golden, antrorse; young stems with numerous shorter, finer hairs on two opposite sides; uppermost internodes sometimes with short spreading glandular hairs.
    Leaves pale glaucous- or yellow-green when dry, oblanceolate to narrowly elliptic or uppermost leaves ovate-elliptic, 6.3–12.3 × 1.8–3.3 cm, base cuneate or uppermost leaves obtuse, apex acute or lower leaves obtuse to rounded, glabrous except for sparse (buff-)golden hispid hairs on margin, midrib and sometimes lateral veins beneath; lateral veins 4–6 pairs; petiole 0–5 mm.
    Inflorescence a strobilate spike 3–7 cm long, terminating main and short lateral branches, each axil single-flowered; bracts broadly obovate to orbicular, (12)17–28 × (8)10–20.5 mm, base attenuate or rounded, apex broadly obtuse or subattenuate, external surface sparsely to more densely glandular-puberulous, with subappressed stiff hairs along margin and principal veins; bracteoles oblanceolate to obovate, (8)11–19 × (2)3–9 mm; flowers sessile.
    Calyx pale green, often flushed mauve towards apex; anterior lobe oblong-elliptic or somewhat obovate, (9.5)11.5–16.5 × (3.5)4.5–6.5 mm, apex acute or notched to 3.5 mm, glandular-puberulous towards margin and apex, short ascending eglandular hairs sparse to numerous, two principal veins prominent; posterior lobe as anterior but sometimes more oblong-lanceolate, (11)13.5–18 × 4–7 mm, apex acute-mucronulate; lateral lobes linear-lanceolate, 9.5–15 mm long.
    Corolla 23.5–30 mm long, white, pale blue or mauve, sometimes with darker guidelines, lateral lobes pubescent externally; tube cylindrical, 12.5–14 mm long; limb in 2+3 arrangement; abaxial lobe 8.5–14 × 7.5–11 mm; lateral lobes 10–16 × 6.5–7.5 mm; adaxial pair fused for 2.5–4.5 mm, free portions subulate or oblanceolate, 5–12 × 1.5–3.5 mm.
    Stamens attached c.3.5 mm from corolla base; filaments 15.5–19 mm long; anthers 2.2–3.3 mm; staminodes c.0.8 mm.
    Ovary densely pubescent; style sparsely hairy towards base; stigma c.1.5 mm long.
    Capsule 14–16 mm long, puberulous.
    Seeds 6–7 × 6 mm.
    Also in southern D.R. Congo.
    Miombo and chipya woodland including degraded areas; 1100–1350 m.
    Conservation notes: Rather local and known from c.10 sites in Congo and 3 in Zambia, but probably under-recorded; likely to be Least Concern.


    Native to:

    Zambia, Zaïre

    Other Data

    Barleria kaessneri S.Moore appears in other Kew resources:


    First published in J. Bot. 47: 295 (1909)

    Accepted by

    • Darbyshire, I., Vollesen, K. & Kelbessa, E. (2015). Flora Zambesiaca 8(6): 1-314. Royal Botanic Gardens, Kew.
    • Govaerts, R. (1996). World Checklist of Seed Plants 2(1, 2): 1-492. MIM, Deurne.


    Flora Zambesiaca

    • —Champluvier in Pl. Ecol. Evol. 144: 94, fig.3d (2011).
    • —Darbyshire & Ndangalasi in J. E. Afr. Nat. Hist. 97: 131 (2009).
    • in J. Bot. 47: 295 (1909).


    Flora Zambesiaca
    Flora Zambesiaca

    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.