Skip to main content
  1. Family: Acanthaceae Juss.
    1. Genus: Barleria L.
      1. Barleria sunzuana Brummitt & Seyani

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


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

    Trailing or decumbent suffrutex, branches to 30 cm long radiating from a woody base and rootstock; stems with numerous long coarse spreading or ascending pale hairs, often interspersed with shorter finer spreading hairs.
    Leaves elliptic or narrowly oblong to somewhat obovate or oblanceolate, 2.8–5 × 1–2 cm, base cuneate or attenuate, apex acute to rounded, surfaces with pale coarse subappressed or ascending hairs, evenly distributed above, most dense on veins beneath; lateral veins (3)4–5 pairs; petiole to 5 mm long.
    Inflorescences clustered in uppermost axils, often forming dense heads, each cyme unilateral, contracted, 2 to several flowered; bracteoles lanceolate, 18–33 × 4–7.5 mm, margin entire or minutely toothed, apex spinose, sometimes falcate, triplinerved with prominent midrib, indumentum as leaves beneath but with finer more spreading hairs between veins and often with scattered glandular hairs.
    Calyx green or mauve-tinged at first with darker venation, later turning scarious, accrescent; anterior lobe broadly ovate, 23–31 × 17–21 mm, base cordate or rounded, margin laciniate with teeth to 4 mm long, bristle-tipped, apex usually bifidly spinose, indumentum as bracteoles, glandular hairs most conspicuous along laciniae; posterior lobe as anterior but 25–33 mm long, apex attenuate into a short spine; lateral lobes linear-lanceolate, 10–12 mm long.
    Corolla 43–48 mm long, pale blue or pale purple with white tube, pubescent externally, limb with mainly glandular hairs; tube 27–31 mm long, gradually and narrowly expanded above attachment point of stamens; limb in weak 2+3 arrangement; abaxial lobe 15–16 × 10–12 mm; lateral lobes 14–17.5 × 9–11 mm; adaxial lobes 13–14 × 6–8 mm.
    Stamens attached ± midway along corolla tube; filaments 14–16 mm long; anthers held at corolla mouth, 3–3.5 mm long; lateral staminodes 2–3 mm long, pilose, antherodes 1–1.5 mm long.
    Ovary with few white hairs at apex; style glabrous; stigma subcapitate, 0.5–0.7 mm long.
    Capsule 20–22 mm long, shortly beaked, glabrous.
    Seeds 7.5–8 × 6.5–7 mm.
    Not known elsewhere.
    Open rocky slopes, rough rocky grassland, sandy flats amongst exposed laterite; 1500–2100 m.
    Conservation notes: Endemic to the slopes of Mt Sunzu in NE Zambia and adjacent Saisi Valley flats. Although much suitable habitat remains on the mountain, satellite imagery indicates the adjacent valley is widely farmed; probably Vulnerable under IUCN criterion B.


    Other Data

    Barleria sunzuana Brummitt & Seyani appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Richards, H.M. [16369], Zambia K000394519 holotype


    First published in Kew Bull. 32: 721 (1978)

    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: 83 (2011).
    • in Kew Bull. 32: 721, fig.1 (1978).


    Flora Zambesiaca
    Flora Zambesiaca

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet [accessed on Day Month Year]'. Please enter the date on which you consulted the system.

    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.