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This species is accepted, and its native range is S. Ethiopia to N. Uganda.
A specimen from Kew's Herbarium

[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: Sudan, Imatong Mts, Lomul, A.S. Thomas 1935 (K!, holo.)
Morphology General Habit
Aromatic perennial succulent softly wooded herb or shrub 1–1.5 m tall
Morphology Stem
Stems erect or straggling, branching, pubescent with short glandular patent hairs
Morphology Leaves
Leaves fleshy, spreading to ascending, petiolate; blades elliptic, 3–6 × 2–4 cm, deeply crenate, base cuneate, apex obtuse, sparsely pubescent, with red and yellowish sessile glands; petiole 3–10 mm long
Morphology Reproductive morphology Inflorescences
Inflorescence condensed above with 6-flowered verticils becoming up to 20 mm distant at base; cymes 3-flowered, sessile, but rarelyon short peduncles; bracts rotund, 10–15 mm long, mucronate to shortly apiculate at apex, purple, erect above forming a conspicuous terminal coma, cucullate enclosing buds, soon deciduous; pedicels 3 mm long, erect, flattened, curved distally
Morphology Reproductive morphology Flowers Calyx
Calyx 6 mm long, purplish, pubescent, with colourless glands; fruiting calyx 10 mm long, shortly tubular and with pedicel attached excentrically behind posterior lip; throat truncate, densely villose; posterior lip very broad, triangular, almost truncate with a small mucro at apex, curving upwards, not decurrent; anterior lip 4-lobed, lobes lanceolate to linear with median lobes slightly longer
Morphology Reproductive morphology Flowers Corolla
Corolla blue, 19–22 mm long, with scattered hairs on lobes; tube 9–11 mm long, sigmoid; posterior lip vertical or slightly reflexed against tube, 4-lobed with median lobes broader, much shorter than anterior lip; anterior lip 10–11 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, 2.5 mm long, not producing mucilage when wet.
Ecology
Montane grassland; 2400 m
Conservation
Least concern; limited distribution in high alpine areas, but this habitat is not greatly threatened
Note
SYN. Coleus grandicalyx E.A.Bruce in Hook., Ic. Pl. 34, t. 3391 (1939); F.P.S. 3: 208 (1956) See note following P. ornatus.
Distribution
Range: Sudan (Imatong Mts), Ethiopia (east slopes of Mt Delo, Amara Mts) Flora districts: U1

Native to:

Ethiopia, Sudan, Uganda

Coleus grandicalyx E.A.Bruce appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Thomas, A.S. [1800], Sudan Plectranthus grandicalyx K000431912 Unknown type material
Thomas, A.S. [1800], Sudan Plectranthus grandicalyx K000431913

First published in Hooker's Icon. Pl. 34: t. 3391 (1939)

Not 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. [Cited as Plectranthus grandicalyx.]
  • Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne. [Cited as Plectranthus grandicalyx.]
  • 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 grandicalyx.]
  • 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 grandicalyx.]

Literature

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
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