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

[FTEA]

Acanthaceae (part 1), Kaj Vollesen, Flora of Tropical East Africa, 2008

Morphology General Habit
Trailing or straggling perennial herb with several stems from a woody rootstock; stems up to 35 cm long, puberulous to sericeous.
Morphology Leaves
Leaves: lamina lanceolate to narrowly ovate or narrowly elliptic, largest 5–7 × 0.5–1.5 cm, margin entire, glabrous to sparsely scabrid-pubescent.
Morphology Reproductive morphology Inflorescences
Spikes in dense terminal clusters of 2–8(–16) or some solitary, persistent, each subtended by a whorl of small bract-like leaves; bracts straw-coloured to dark brown, obovate or narrowly so, puberulous to pubescent, terminating in a recurved bristle and on each side with 5–7 finely retrorsely scabrid (pilose near base) and finely glochidiate bristles (2–)3–7 mm long; outer pair 6–9 mm long, second pair 8–13 mm long, third pair 12–16 mm long, inner pair 16–20 mm long; bracteoles absent.
Morphology Reproductive morphology Flowers Calyx
Sepals puberulous and ciliate, colour as bracts; dorsal elliptic, 23–26 mm long, apical part somewhat ligulate, apex subacute to rounded with 1–3(–5) small teeth; ventral ovate-elliptic, 19–23 mm long, with two acute teeth 2–7 mm long; lateral 12–16 mm long.
Morphology Reproductive morphology Flowers Corolla
Corolla creamy white to pale violet, 27–33 mm long of which the tube 6–8 mm; callus 3-ribbed apically and with 3(–4) distinct apical flanges.
Morphology Reproductive morphology Flowers Androecium Stamens Filaments
Filaments 8–9 mm long, sparsely glandular near apex; appendage 1–2 mm long broadly rounded; anthers 3.5–5 mm long.
Morphology Reproductive morphology Fruits
Capsule and seed not seen.
Ecology
Brachystegia woodland on sandy to stony soil and on rocky outcrops; 1500–1800 m
Note
Napper (l.c.) says that this taxon is only slightly different from Blepharis cuanzensis from W Angola, Zambia and SW Congo. But there are in actual fact so many differences that the two must be treated as distinct species. In B. tanganyikensis the flowers are in dense clusters, the sepals are short, the corolla is white to pale violet with the limb uniformly hairy all over the upper surface. In B. cuanzensis the corolla is bright blue or dark purple and the limb is only hairy in the central part.
Distribution
Flora districts: T7 Range: Congo-Kinshasa, Zambia, Malawi Range: Congo-Kinshasa, Zambia, Malawi Range: Tanzania.

Native to:

Malawi, Tanzania, Zambia, Zaïre

Blepharis tanganyikensis (Napper) Vollesen appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Jan 1, 1997 Richards, H.M. [15228], Zambia K000394247 holotype

First published in Blepharis (Acanthac.) Taxon. Revis.: 217 (2000)

Accepted by

  • Govaerts, R. (2001). World Checklist of Seed Plants Database in ACCESS E-F: 1-50919.
  • Vollesen, K. (2008). Flora of Tropical East Africa, Acanthaceae(1): 1-285.
  • Vollesen, K. (2013). Flora Zambesiaca 8(5): 1-184. Royal Botanic Gardens, Kew.

Literature

Flora of Tropical East Africa

  • Blepharis: 217 (2000).

Flora of Tropical East Africa
Flora of Tropical East Africa
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