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This species is accepted, and its native range is NE. Tropical to S. Africa, S. Madagascar, Arabian Peninsula.
Endostemon tenuiflorus

[FSOM]

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

Morphology General Habit
Short-lived perennial woody herb, 0.05–0.3 m tall, usually much branched
Morphology Leaves
Leaves subsessile, linear or oblanceolate, up to 8–40 × 2–10 mm, ± convolute, apex rounded or obtuse, margin remotely crenate to almost entire, often slightly revolute
Morphology Reproductive morphology Inflorescences
Cymes 1-flowered; pedicels 2–3 mm long, slightly flattened
Morphology Reproductive morphology Fruits Fruiting calyx
Fruiting calyx up to 5–8 mm long, open, villous in the throat; lateral lobes lanceolate and with upper margin extended and in right angle in to the apex, shorter than the lower lobes
Morphology Reproductive morphology Flowers Corolla
Corolla subequally 5-lobed (in Somalia), 7–15 mm long, pink or white; lobes in the same plane, at right angles to the tube
Morphology Reproductive morphology Flowers Gynoecium Style
Style with the upper branch longer
Morphology Reproductive morphology Fruits
Nutlets c. 1.3 × 0.9 mm, smooth, black or dark brown, producing mucilage when wet.
Distribution
N1–3; C1, 2; S1–3
Ecology
Altitude range 0–1900 m.

[FTEA]

Lamiaceae (Labiatae), A.J. Paton, G. Bramley, O. Ryding, R.M. Polhill, Y.B. Harvey, M. Iwarsson, F. Willis, P.B. Phillipson, K. Balkwill, C.W. Lukhoba, D.F. Otieno, & R.M. Harley. Flora of Tropical East Africa. 2009

Type
Type: Yemen [Arabia Felix], Botta s.n. (P, holo.)
Morphology General Habit
Aromatic annual or short lived perennial woody herb, 15–20 cm tall with one or several stems arising from a tap root
Morphology Stem
Stems erect, quadrangular, much branched, woody at base, pubescent with short or long, patent eglandular and glandular hairs often with longer hairs at nodes and with sessile glands
Morphology Leaves
Leaves sessile, often with fascicles of young leaves in axils; blades linear, narrowly elliptic or narrowly obovate, 8–15 × 2–4 mm, distally crenate, often slightly revolute, apex round or obtuse, base attenuate or cuneate, glandular-punctate and pubescent with hairs denser on younger leaves
Morphology Reproductive morphology Inflorescences
Inflorescence lax, with 2-flowered verticils 7–10 mm apart; bracts 1 mm long, with long white hairs; pedicels 2 mm long, erect or ascending, slightly flattened, curving distally
Morphology Reproductive morphology Flowers Calyx
Calyx horizontal, 3 mm long at anthesis, pubescent with longer hairs on anterior teeth and veins, sometimes with sessile glands; fruiting calyx tubular-campanulate with throat open with a dense ring of villose hairs, 5 mm long; lateral lobes of calyx anterior lip deltate or lanceolate with the posterior margin extended towards the posterior lip; median lobes of anterior lip linear, longer than lateral teeth
Morphology Reproductive morphology Flowers Corolla
Corolla pink with white tube, (7–)10–15 mm long; tube 8 mm long, slender, parallel-sided, dilating at throat; 4lobed or posterior broader and emarginate to bifid
Morphology Reproductive morphology Fruits
Nutlets black, ovoid, rounded at apex, 1.5–2 mm long, smooth producing copious greyish mucilage when wet.
Ecology
Open Acacia-Commiphora scrub, on limestone; 420–850 m
Conservation
Least Concern; widespread in Arabian Peninsula, Africa and southern Madagascar, but in East Africa relatively few collections, often from areas of limestone
Note
Perhaps most closely related to E. glandulosus R.M.Harley & Sebsebe from Ethiopia, which has a more spreading habit, shorter inflorescence and 5-lobed corolla.
Distribution
Range: Sudan, Ethiopia, Somalia, Zimbabwe, Botswana, Namibia, South Africa and Madagascar, Yemen, Oman, Socotra Flora districts: K1 K7 T3

Native to:

Botswana, Djibouti, Eritrea, Ethiopia, Gulf States, Kenya, Madagascar, Namibia, Northern Provinces, Oman, Saudi Arabia, Socotra, Somalia, Sudan, Tanzania, Yemen, Zimbabwe

Endostemon tenuiflorus (Benth.) M.R.Ashby appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Jan 1, 1992 Botta, P. E. [s.n.], Yemen K000674644
Jan 1, 1992 Hildebrandt, J.M. [1561], Somalia K000347241

First published in J. Bot. 74: 125 (1936)

Accepted by

  • Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. Kew publishing, Royal Botanic Gardens, Kew.
  • Govaerts, R. (2003). World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew.
  • 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.
  • Miller, A.G. & Morris, M. (2004). Ethnoflora of Soqotra Archipelago: 1-759. The Royal Botanic Garden, Edinburgh.
  • Paton, A.J., Bramley, G., Ryding, O., Polhill, R., Harvey, Y., Iwarsson, M., Willis, F., Phillipson, P., Balkwill, K., Lukhoba, C., Otiend, D & Harley (2009). Lamiaceae (Labiatae) Flora of Tropical East Africa: 1-430.
  • Paton, A.J., Bramley, G., Ryding, O., Polhill, R.M., Harvey, Y.B., Iwarsson, M., Otieno, D., Balkwill, K., Phillipson, P.B., Harley, R.M. & Willis, F. (2013). Flora Zambesiaca 8(8): 1-346. Royal Botanic Gardens, Kew.
  • Patzelt, A. & al. (2020). Studies in the flora of Arabia: XXXIV. Sixty new records from the Sultanate of Oman Edinburgh Journal of Botany 77: 413-437.
  • Thulin, M. (ed.) (2006). Flora of Somalia 3: 1-626. The Royal Botanic Gardens, Kew.

Literature

Kew Backbone Distributions

  • Audru, J., Cesar, J. & Lebrun, J.-P. (1994). Les Plantes Vasculaires de la République de Djibouti. Flore Illustrée 1: 1-336. CIRAD, Départerment d'Elevage et de Médecine vétérinaire, Djibouti.
  • Patzelt, A. & al. (2020). Studies in the flora of Arabia: XXXIV. Sixty new records from the Sultanate of Oman Edinburgh Journal of Botany 77: 413-437.

Flora of Somalia

  • Flora Somalia, (2000) Author: by O. Ryding [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

  • E.P.A.: 852 (1963)
  • F.S.A. 28 (4): 129, fig. 24/2 (1985)
  • Fl. Eth. 5: 579 (2006)
  • Fl. Somalia 3: 345 (2006).
  • J.B. 74: 125 (1936)
  • K.B. 49: 706 (1994)

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/