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This species is accepted, and its native range is Ethiopia to N. Tanzania, Arabian Peninsula.

[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: Ethiopia, Debre Libanos, de Wilde 8656 (WAG, holo.)
Morphology General Habit
Aromatic perennial succulent herb to 1 m tall
Morphology Stem
Stems rounded-quadrangular below, quadrangular above, scandent or prostrate with only inflorescences erect, sometimes erect when young, succulent, sometimes purplish, producing short axillary shoots which can fall off to produce new plants, pubescent to tomentose with retrorse or patent eglandular hairs, with colourless or yellowish sessile glands
Morphology Leaves
Leaves spreading or deflexed, succulent, with young shoots in axils, petiolate; blades trullate or rhombic or broadly so, 1–3.5 × 0.4–2.5 cm, crenate or sinuate distally, weakly revolute, apex obtuse to rounded, base cuneate to attenuate, densely pubescent to tomentose, with yellowish sessile glands; petiole 1–15 mm long
Morphology Reproductive morphology Inflorescences
Inflorescence lax in fruit with 10–14-flowered verticils touching or up to 10 mm apart in flower, 10–15 mm apart in fruit; cymes sessile, 5–7-flowered; bracts broadly elliptic, 1–4 mm long, erect above forming a small inconspicuous terminal coma, soon deflexed and deciduous before fruiting; pedicels 1–3 mm long, slightly flattened, straight or slightly curved distally
Morphology Reproductive morphology Flowers Calyx
Calyx 2 mm long, pilose or densely so with hairs often purplish and with yellowish sessile glands; fruiting calyx 3 mm long, straight, purplish, shortly tubular with pedicel attached excentrically behind the posterior lip; throat truncate; posterior lip narrowly elliptic, slightly hooded or flat, horizontal, not decurrent; lobes of anterior lip equal, lanceolate with a deep slit between the median lobes
Morphology Reproductive morphology Flowers Corolla
Corolla pale blue or lilac-blue, 5–9 mm long, with scattered hairs and yellowish sessile glands on lobes; tube 3–4.5 mm long, sigmoid; posterior lip erect, shorter than anterior lip; anterior lip 2–4.5 mm long, shallowly cucullate, horizontal
Morphology Reproductive morphology Flowers Androecium Stamens
Staminal filaments free, shortly exceeding anterior lip
Morphology Reproductive morphology Fruits
Nutlets brown shiny with reddish dots, broadly elliptic, flattened, 1 mm long, producing lots of mucilage speckled on outer surface.
Ecology
Rocks or dry grassland, often scrambling up through thick vegetation; 1200–2100 m
Conservation
Least concern; widely distributed
Distribution
Range: Ethiopia Flora districts: U1 K1 K2 K3 K4 K5 K6 K7 T1 T2

Native to:

Ethiopia, Kenya, Saudi Arabia, Tanzania, Uganda

Coleus succulentus Pax appears in other Kew resources:

First published in Bot. Jahrb. Syst. 39: 646 (1907)

Not accepted by

  • Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne. [Cited as Plectranthus crassuloides.]
  • Govaerts, R. (2003). World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew. [Cited as Plectranthus crassuloides.]
  • 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. [Cited as Plectranthus pseudomarrubioides.]
  • 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. [Cited as Plectranthus pseudomarrubioides.]

Flora of Tropical East Africa
Flora of Tropical East Africa
http://creativecommons.org/licenses/by-nc-sa/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