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This species is accepted, and its native range is Tanzania to Limpopo.
A specimen from Kew's Herbarium

[FZ]

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

Morphology General Habit
Erect, scrambling or trailing (–short-lived) perennial herb or shrub 15–200(300) cm tall; stems with dense short spreading glandular hairs and sparse to numerous interspersed buff or yellow coarse ascending hairs, with or without a stellate base; older stems sometimes long white-floccose.
Morphology Leaves
Leaves sometimes immature at flowering, ovate, elliptic, lanceolate or sometimes obovate when immature, 3–13 × 1.5–6 cm, base attenuate, cuneate or rarely obtuse, apex acute to acuminate or obtuse to rounded when immature, leaf buds ± densely pale grey stellate-pubescent throughout but hairs often falling early, upper surface, margin and veins beneath with few to numerous coarse yellow or buff-coloured hairs with or without a stellate base, often with spreading glandular hairs at least along margin; lateral veins 4–6 pairs; petiole 3–32 mm long.
Morphology Reproductive morphology Inflorescences
Inflorescences axillary or crowded towards stem apex and forming a loose thyrse, each cyme (1)2–9-flowered, contracted or somewhat lax, unilateral or few-branched; primary peduncle 0.5–5 mm long, secondary peduncles 1–8.5 mm long; bracts foliaceous but often reduced and more obovate, then typically 6–21 × 3–14 mm at uppermost axils; bracteoles linear-lanceolate, pairs unequal, the larger (5.5)8.5–23(26) × 0.5–3(4) mm, margin with widely-spaced short teeth or subentire, apex spinose; flowers subsessile.
Morphology Reproductive morphology Flowers Calyx
Calyx papery, green to purple with paler base and conspicuous darker reticulate venation, later pale-scarious; anterior lobe ovate(orbicular) or lanceolate to obovate or oblanceolate, (6.5)8–20 × 2.5–14 mm, base truncate to cuneate or attenuate, margin with coarse spinose teeth throughout or in distal portion only, sometimes reduced to short teeth, apex acute to rounded or emarginate in outline, surfaces with sparse simple and/or long-armed stellate hairs, basal portion often with ± dense short crisped eglandular hairs, glandular hairs widespread or restricted to margin; posterior lobe (7)8.5–23.5 mm long, apex acute or attenuate, ± spinose; lateral lobes lanceolate-attenuate, 5–10.5 mm long.
Morphology Reproductive morphology Flowers Corolla
Corolla 23–41(46) mm long, limb pale blue, mauve or purple, tube or rarely whole flower white, glandular- and eglandular-pilose externally; tube cylindrical, 13.5–26 mm long, curved towards base; limb in 2+3 arrangement; abaxial lobe 7–17.5 × 5.5–12.5(14) mm; lateral lobes as abaxial but 4.5–10(12.5) mm wide; adaxial lobes divergent, 5.5–13.5 × 4–8.5(10) mm.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens attached 8–16 mm from base of corolla tube; filaments 8.5–21.5 mm long; anthers 2.7–5(6) mm long; lateral staminodes 0.8–3.5(4.7) mm long, pilose to subglabrous, antherodes to 1.4 mm long or absent.
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary with apical ring of minute crisped hairs, with or without straight white hairs towards apex; style glabrous or sparsely pubescent towards base; stigma clavate or linear, 0.5–1.3 mm long.
Morphology Reproductive morphology Fruits
Capsule 11–16 mm long, glabrous or with sparse long white hairs towards apex.
Morphology Reproductive morphology Seeds
Seeds 3–5 × 2.7–4.5 mm.

Native to:

Angola, Botswana, Malawi, Mozambique, Northern Provinces, Tanzania, Zambia, Zimbabwe

Barleria spinulosa Klotzsch appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Nov 1, 2006 Bidgood, S. [5308], Tanzania K000190538
Whyte, A. [s.n.], Malawi K000394564
Harris, T. [475], Malawi K000614553
Kirk [s.n.], Mozambique K000196876 syntype

First published in W.C.H.Peters, Naturw. Reise Mossambique 6(1): 208 (1861)

Accepted by

  • Darbyshire, I., Vollesen, K. & Kelbessa, E. (2010). Flora of Tropical East Africa, Acanthaceae (Part 2): 287-756.
  • Darbyshire, I., Vollesen, K. & Kelbessa, E. (2015). Flora Zambesiaca 8(6): 1-314. Royal Botanic Gardens, Kew.
  • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
  • Govaerts, R. (1996). World Checklist of Seed Plants 2(1, 2): 1-492. MIM, Deurne.
  • Timberlake, J.R., Bayliss, J., Alves, T., Francisco, J., Harris, T., Nangoma, D. & de Sousa, C. (2009). Biodiversity and Conservation of Mchese Mountain, Malawi. Report produced under the Darwin Initiative Award 15/036: 1-71. Royal Botanic Gardens, Kew.

Literature

Flora Zambesiaca

  • in Peters, Naturw. Reise Mossamb. 6: 208 (1861).
  • —Clarke in F.T.A. 5: 152 (1899).
  • —Darbyshire in F.T.E.A., Acanthaceae 2: 343 (2010).
  • —Moriarty, Wild Fl. Malawi: 85, pl.43(3) (1975).
  • —Obermeijer in Ann. Transv. Mus. 15: 174 (1933).

Kew Backbone Distributions

  • Darbyshire, I., Vollesen, K. & Kelbessa, E. (2015). Flora Zambesiaca 8(6): 1-314. Royal Botanic Gardens, Kew.
  • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.

Flora Zambesiaca
Flora Zambesiaca
http://creativecommons.org/licenses/by-nc-sa/3.0

Herbarium Catalogue Specimens
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 2021. 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 2021. 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