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This species is accepted, and its native range is Nigeria to Uganda and Angola.
A specimen from Kew's Herbarium

[FWTA]

Labiatae, J. K. Morton. Flora of West Tropical Africa 2. 1963

Morphology General Habit
A herb up to 6 ft. high
Morphology General Indumentum
Pubescent stems
Morphology Leaves
Large leaves
Morphology Reproductive morphology Flowers
Flowers either red or yellowish, about 1/2 in. long.

[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: Cameroon, Buea, Preuss 948 (B†, holo. HBG!, iso.)
Morphology General Habit
Soft-wooded shrub to 2 m tall
Morphology Stem
Stems erect, slightly succulent, quadrangular, freely branched, glabrous to sparsely pubescent below, becoming densely pubescent on the inflorescence axis with coloured eglandular hairs
Morphology Leaves
Leaves ascending, sessile but witha long-decurrent leaf base; blades elliptic, (8–)15–30 × 6–10 cm, crenate to serrate, weakly revolute, apex acuminate, base long-decurrent, almost glabrous but with hairs on veins and scattered brown or pale sessile glands
Morphology Reproductive morphology Inflorescences
Inflorescence with mainly 6flowered verticils up to 20 mm apart, with bracts subtending sessile 3-flowered cymes; bracts lanceolate or ovate, to 5 mm long, entire; pedicels 4 mm long, slightly flattened
Morphology Reproductive morphology Flowers Calyx
Calyx 4 mm long, sparsely pubescent, with pale or brownish sessile glands; fruiting calyx 10–11 mm long, tubular, slightly curved upwards with pedicel attached ± centrally at base of calyx or excentrically; throat truncate; posterior lip ovate, mucronate at apex, decurrent, curving upwards; lateral lobes deltoid, acuminate at apex with posterior margin extended towards posterior lip forming a prominent or inconspicuous shoulder; median lobes lanceolate, subulate at apex, longer than lateral lobes, curving slightly upwards
Morphology Reproductive morphology Flowers Corolla
Corolla yellow-orange, 15–20 mm long, almost glabrous but with pale sessile glands; tube ± 8–10 mm long, sigmoid; posterior lip shorter than anterior; anterior lip 8–10 mm long, deeply cucullate enclosing stamens, horizontal
Morphology Reproductive morphology Flowers Androecium Stamens
Staminal filaments fused
Morphology Reproductive morphology Fruits
Nutlets brown, ovoid, slightly flattened, 1.5 mm long, minutely reticulate due to pattern of epidermal cells, not producing mucilage.
Ecology
Wet places in forest with Mitragyna stipulosa, Symphonia and Marantochloa; 1200–1300 m
Conservation
Least concern; widely distributed
Distribution
Range: Nigeria, Bioko, Cameroon, Gabon, Central African Republic, Congo-Kinshasa and Angola Flora districts: U2 U4

Native to:

Angola, Cameroon, Central African Repu, Congo, Equatorial Guinea, Gabon, Gulf of Guinea Is., Nigeria, Uganda, Zaïre

Coleus decurrens Gürke appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Jan 1, 2009 Leal [801], Equatorial Guinea Plectranthus decurrens K000509879
May 1, 2001 Pollard, B.J. [118], Cameroon Plectranthus decurrens K000050906
May 1, 2001 Pollard, B.J. [100], Cameroon Plectranthus decurrens K000051057
May 1, 2001 Cable, S. [3531], Cameroon Plectranthus decurrens K000051058
May 1, 2001 Cable, S. [3262], Cameroon Plectranthus decurrens K000050905
Jan 1, 1998 Mambo, P. [167], Cameroon Plectranthus decurrens K000029965
Mar 1, 1996 Lane, P. [209], Cameroon Plectranthus decurrens K000093778
Jan 1, 1995 Thomas, D.W. [5175], Cameroon Plectranthus decurrens K000029963
Jan 1, 1995 Manning, S.D. [63], Cameroon Plectranthus decurrens K000029962
Mar 1, 1976 Letouzey, R. [14576], Cameroon Plectranthus decurrens K000029961
Aug 1, 1975 Letouzey, R. [14356], Cameroon Plectranthus decurrens K000029960
Jul 1, 1975 Letouzey, R. [14117], Cameroon Plectranthus decurrens K000029959
Mann, G. [584], Equatorial Guinea Plectranthus decurrens K000431857 Unknown type material
Mann, G. [1661], Gabon Plectranthus decurrens K000431862 Unknown type material
Adebusuyi, E. [FHI 44046], Cameroon Plectranthus decurrens K000029957
Thomas, D.W. [4964], Cameroon Plectranthus decurrens K000029964
Olorunfemi, J. [FHI 30688], Cameroon Plectranthus decurrens K000029958

First published in Bot. Jahrb. Syst. 19: 215 (1894)

Accepted by

  • Paton, A.J., Mwanyambo, M. Govaerts, R.H.A., Smitha, K., Suddee, S., Phillipson, P.B., Wilson, T.C., Forster, P.I. & Culham, A. (2019). Nomenclatural changes in Coleus and Plectranthus (Lamiaceae): A tale of more than two genera PhytoKeys 129: 1-158.

Not accepted by

  • Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne. [Cited as Plectranthus decurrens.]
  • 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 decurrens.]
  • 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 decurrens.]

Literature

Kew Backbone Distributions

  • Harris, D.J. (2002). The vascular plants of the Dzanga-Sangha Reserve, Central African Republic: 1-274. National Botanic Garden (Belgium), Meise.
  • Morales, R. (2011). Les Labiadas (Lamiaceae) de Guinea Ecuatorial Anales del Jardin Botanico de Madrid 68: 199-223.
  • 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.
  • Sita, P. & Moutsambote, J.-M. (2005). Catalogue des plantes vasculaires du Congo, ed. sept. 2005: 1-158. ORSTOM, Centre de Brazzaville.
  • Sosef, M.S.M. & al. (2006). Check-list des plantes vasculaires du Gabon Scripta Botanica Belgica 35: 1-438.

Flora of Tropical East Africa
Flora of Tropical East Africa
http://creativecommons.org/licenses/by-nc-sa/3.0

Flora of West Tropical Africa
Flora of West Tropical 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