Skip to main content
This species is accepted, and its native range is Ethiopia to N. Kenya.
Blepharis boranensis

[FTEA]

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

Morphology General Habit
Perennial herb with prostrate stems from woody rootstock; stems to 35 cm long, subglabrous to densely puberulous when young.
Morphology Leaves
Leaves sometimes purple tinged, scabrid-puberulous to glabrous; lamina elliptic or narrowly so (rarely lanceolate), largest (3–)4–12 × (0.3–)0.5–1.5(–2) cm; petiole of some or all on each side with 1–2 teeth within 2 mm of base, margin on each side with (10–)20-over 50 (usually some over 20) fine forwardly directed teeth, glabrous to sparsely puberulous and with sparse to dense broad glossy hairs on midrib beneath.
Morphology Reproductive morphology Inflorescences
Spikes 2–7.5(–12) cm long; peduncle 0.5–1 cm long, with 4–6 pairs of sterile bracts; fertile bracts elliptic-obovate or broadly so, 2.2–3.5 × 0.8–1.6 cm of which the straight to slightly recurved narrowly triangular spinose tip 0.5–1 cm, each side with (5–)7–12 straight or slightly reflexed teeth of which the longest 4–7 mm, glabrous to minutely puberulous and usually with scattered to dense puberulous to pilose hairs, often only on veins; bracteoles 14–21(–23) mm long, minutely puberulous or sparsely so and distinctly puberulous-ciliate.
Morphology Reproductive morphology Flowers Calyx
Sepals sparsely to densely minutely puberulous or sericeous-puberulous, distinctly pilose-ciliate; dorsal ovate-elliptic or broadly so, 17–23(–25) mm long, 5(–7)-veined from base, narrowing abruptly to a subligulate apical part which narrows gradually to an often irregularly 3-toothed apex (often appearing irregularly toothed because apical part becomes scarious and disintegrates); ventral broadly ovate-elliptic, 12–17(–20) mm long, 5(–7)-veined from base, narrowing gradually to an apex with 2 triangular and mucronate teeth; lateral 8–10 mm long.
Morphology Reproductive morphology Flowers Corolla
Corolla bright blue to dark blue, (25–)27–35 mm long of which the tube 4–7 mm.
Morphology Reproductive morphology Flowers Androecium Stamens Filaments
Filaments 7–10 mm long, glabrous to sparsely glandular, all four hairy towards base; appendage 4–6.5 mm long, from shorter to longer than anther; anthers 4–6 mm long.
Morphology Reproductive morphology Fruits
Capsule 10–11 mm long.
Morphology Reproductive morphology Seeds
Seed 6–7 × ± 5 mm.
Distribution
Range: Ethiopia, Djibouti, Somalia Flora districts: K1 Range: Ethiopia, Djibouti, Somalia Range: Kenya. Flora districts: K1 Range: Ethiopia
Ecology
Acacia-Commiphora bushland on rocky hills; no altitude given Acacia-Commiphora woodland and bushland on sandy soil derived from limestone or on rocky limestone slopes; 650 m (900–1300 m in Ethiopia).
Note
Blepharis boranensis is widespread in SE Ethiopia where it almost exclusively occurs on crystalline limestone. There is no indication of the substrate of the single Kenyan collection. The species is almost certainly more widespread in NE Kenya. It differs most conspicuously from B. edulis in the perennial habit, more numerous forwardly directed leaf-teeth, spiny petiole and larger corolla. Only known from 4 collections from adjacent areas of NE Kenya and SE Ethiopia It differs from the other subspecies of the variable C. infundibuliformis in the appressed silvery indumentum on stems and leaves and in the small leaves (see Vollesen in K.B. 45: 122 (1990)). C. infundibuliformis subsp. infundibuliformis – a native of India – is occasionally cultivated in Tanzania and has also been recorded as an escaped weed in the Sudan. It differs in having a spreading non-silvery indumentum and larger leaves.
Type
Type: Ethiopia, Sidamo Region, El Siro Wells, Friis, Mesfin & Vollesen 3216 (K!, holo.; C!, ETH, UPS, iso.)
Morphology General Indumentum
Indumentum silvery-sericeous.

[FSOM]

M. Thulin et al. Flora of Somalia, Vol. 1-4 [updated 2008] https://plants.jstor.org/collection/FLOS

Morphology General Habit
Perennial herb, sometimes shrubby; stems to 35 cm long, subglabrous to densely pubescent when young
Morphology Leaves
Leaves ± narrowly elliptic or lanceolate, up to (3–)4–12 x (0.3–)0.5–1.5(–2) cm, glabrous to sparsely puberulous and also with hairs on midrib beneath, margin with (10–) 20–numerous forwardly directed teeth on each side starting from the base
Morphology Reproductive morphology Inflorescences
Spikes 2–7.5(–12) cm long, 4–22-flowered; peduncle 5–10 mm long; fertile bracts green to whitish, glabrous to puberulous and usually also with longer hairs, ± broadly elliptic-obovate, 22–35 x 8–16 mm, with a straight to slightly recurved spinose 5–10 mm long tip, and with (5–)7–12 spines up to 4–7 mm long on each side; bracteoles 14–21(–23) x 1.5–2.5 mm
Morphology Reproductive morphology Flowers Calyx
Calyx ± densely pubescent, the upper lobe ± broadly ovate-elliptic, 17–23(–25) mm long, 5(–7)-veined from the base, irregularly 3-toothed at the apex, the lower lobe 12–17(–20) mm long, with 2(–3) teeth at the apex
Morphology Reproductive morphology Flowers Corolla
Corolla blue, mauve or bluish purple, (25–)27–35 mm long; tube 4–7 mm long; limb 12–22 mm wide.
Distribution
N1; Djibouti, Ethiopia, N Kenya
Ecology
Altitude range 1300–1800 m.

Native to:

Djibouti, Ethiopia, Kenya, Somalia

Blepharis boranensis Vollesen appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Jan 1, 1997 Burger, W. [3560], Ethiopia K000394175 holotype

First published in Blepharis (Acanthac.) Taxon. Revis.: 110 (2000)

Accepted by

  • Govaerts, R. (2001). World Checklist of Seed Plants Database in ACCESS E-F: 1-50919.
  • Hedberg, I., Kelbessa, E., Edwards, S., Demissew, S. & Persson, E. (eds.) (2006). Flora of Ethiopia and Eritrea 5: 1-690. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
  • Thulin, M. (ed.) (2006). Flora of Somalia 3: 1-626. The Royal Botanic Gardens, Kew.
  • Vollesen, K. (2008). Flora of Tropical East Africa, Acanthaceae(1): 1-285.

Literature

Flora of Somalia

  • Flora Somalia, (2000) Author: by M. Thulin [updated by M. Thulin 2008]
  • Pickering, H. & Awale, A. I. (2018). Introduction to plants in Central Somaliland. Ponte Invisibile, Redsea Cultural Foundation.

Flora of Tropical East Africa

  • Blepharis: 110 (2000)
  • F.E.E. 5: 360 (2006)
  • F.E.E. 5: 366 (2006).
  • Fl. Somalia 3: 380 (2006).
  • K.B. 45: 125 & 514 (1990)
  • Lebrun & Stork, Enum. Pl. Afr. Trop. 4: 476 (1997)

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

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

Kew Science Photographs
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/