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This species is accepted, and its native range is Eritrea to E. Tanzania.

[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, Dschenausa, Schimper 1328 (P, holo.)
Morphology General Habit
Aromatic perennial succulent softly wooded herb or shrub 0.4–1.5 m tall
Morphology Stem
Stems erect or straggling, branching, sometimes forming cushions, pubescent with antrorse and sometimes patent hairs, becoming glandular above and with scattered red sessile glands
Morphology Leaves
Leaves fleshy, spreading to ascending, petiolate or rarely sessile; blades elliptic to obovate, 1.2–8.8 × 0.5–4.5 cm, crenate, apex obtuse, more rarely acute or rounded, base cuneate, sparsely pubescent, with red and yellowish sessile glands; petiole (0–)2–10 mm long
Morphology Reproductive morphology Inflorescences
Inflorescence condensed with 6-flowered verticils mostly touching in fruit, but sometimes with the lowermost verticil up to 15 mm distant; cymes 3-flowered, sessile, but rarely on short peduncles; bracts blue to purple, ovate, 5–15 mm long, or broadly so, mucronate to apiculate at apex, erect above forming a conspicuous terminal coma, cucullate enclosing buds, soon deciduous; pedicels 3 mm long, erect, flattened, curved distally, slightly winged at base
Morphology Reproductive morphology Flowers Calyx
Calyx 5–6 mm long, purplish, pubescent, with scattered yellow and red sessile glands; fruiting calyx 6–8 mm long, shortly tubular and with pedicel attached excentrically behind posterior lip; throat truncate, densely villose; posterior lip broadly obovate, rounded to obtuse at apex, curving up, not decurrent; anterior lip 4-lobed, lobes lanceolate to linear with median lobes narrower, rarely anterior lip up to 8-lobed due to development of lanceolate to linear supernumerary teeth
Morphology Reproductive morphology Flowers Corolla
Corolla blue or purple, 14–22 mm long, with scattered hairs on lobes; tube 7–10 mm long, sigmoid; posterior lip much shorter than anterior lip; anterior lip 7–12 mm long, horizontal, cucullate, enclosing stamens
Morphology Reproductive morphology Flowers Androecium Stamens
Staminal filaments fused
Morphology Reproductive morphology Fruits
Nutlets dark grey with paler vein-like marks, smooth, with dark gland dots, broadly ovate in outline, flattened, 2–3 mm long, not producing mucilage when wet.
Ecology
Rocks, cliffs or in crevices; 1800–3000 m
Conservation
Least concern; widely distributed
Note
Specimens from Mt Moroto in U 1 are slightly anomalous in having large calyces with supernumerary teeth on the anterior lip and nutlets 3 mm long; these specimens approach P. grandicalyx which has a fruiting calyx 10 mm long. Further work is needed to clarify the boundary between these two species. Most likely to be confused with P. caninus var. caninus, but differing in the larger fruiting calyx and corolla and more shrubby habit with less villose stem indumentum. Also close to the allopatric P. neochilus Schltr., which differs in having a lax inflorescence with fruiting calyces mostly separate rather than mostly touching. P. neochilus is widely cultivated as an ornamental. Populations from K 7 and T 3 tend to have mature calyces 6 mm long, whereas those in other areas tend to be around 7–8 mm long.
Distribution
Flora districts: U1 K1 K2 K3 K6 K7 T3 T6 Range: Cultivated in South Africa and some other tropical countries Range: Ethiopia, Eritrea

Native to:

Eritrea, Ethiopia, Kenya, Tanzania, Uganda

Introduced into:

KwaZulu-Natal, Northern Provinces

Coleus comosus Hochst. ex Gürke appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Mar 23, 1996 Verdcourt, B. [4929], Papua New Guinea Plectranthus ornatus K000897900
Henty, E.E. [NGF42901], Papua New Guinea Plectranthus ornatus K000897901

First published in Bot. Jahrb. Syst. 19: 212 (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 ornatus.]
  • 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 ornatus.]
  • 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 ornatus.]

Literature

Catálogo de Plantas y Líquenes de Colombia

  • ColPlantA (2021). "ColPlantA. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet; http://www.colplanta.org/"

Kew Backbone Distributions

  • 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.

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

Herbarium Catalogue Specimens

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