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This species is accepted, and its native range is S. 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
Typus: Tanzania, Songea District: just E of R. Gembabili ± 3 km SW of Kitai, Milne-Redhead & Taylor 9735 (K!, holo. (sheet 2)!; EA, K (sheet 1)!, iso.)
Morphology General Habit
Perennial herbs 0.25–0.6 m tall arising from a cluster of 1 cm long elliptic, annually replaced tubers
Morphology Stem
Stems erect, or slightly decumbent, quadrangular, unbranched, pubescent with retrorse and patent eglandular hairs, with red sessile glands
Morphology Leaves
Leaves petiolate; blades sometimes marked red on veins and margins, ovate, crenate to serrate, 2.5–4 × (1.5–)2.5–4 cm, apex acute, base cuneate, but weakly attenuate at petiole, pubescent, with red sessile glands; petiole 10–15 mm long
Morphology Reproductive morphology Inflorescences
Inflorescence with 6–20-flowered verticils 10 mm apart in fruit; cymes sessile, 3–10-flowered with lateral cincinni to 10 mm long; bracts erect above, slightly cucullate, 3–5 mm long, soon becoming deflexed, persistent; pedicels 2–4 mm long
Morphology Reproductive morphology Flowers Calyx
Calyx 2 mm long, pubescent, with red sessile glands; fruiting calyx 4 mm long, tubular, constricted at throat, slightly curved with pedicel attached excentrically behind the posterior lip; throat truncate; posterior lip elliptic, curving upwards, acute at apex, not decurrent; lateral lobes rounded, oblong; median lobes of anterior lip linear, equal or just exceeding posterior lip, 2–2.5 mm long with short teeth to 0.5 mm long
Morphology Reproductive morphology Flowers Corolla
Corolla blue or violet, 8 mm long, pubescent on lobes, with red sessile glands; tube 4 mm long, sigmoid; posterior lip erect or reflexed, shorter than anterior; anterior lip 4 mm long, cucullate enclosing stamens
Morphology Reproductive morphology Flowers Androecium Stamens
Staminal filaments fused
Morphology Reproductive morphology Fruits
Nutlets dark brown, ovoid, 1 mm long, producing a small amount of mucilage.
Ecology
DISTR. T 8; not known elsewhere Brachystegia woodland; 900–950 m
Conservation
Only known from 2 collections; possibly threatened
Note
Most likely to be confused with P. rotundifolius but differing by having persistent bracts and spreading hairs on the stem. P. botryosus occurs naturally in Brachystegia woodland rather than being found in cultivation or previously cultivated areas. The leaf and stem coloration and persisteant bracts are also found in P. scutellarioides (L.) R. Br., a widespread variable complex from tropical Asia and sometimes found in cultivation. However, that species tends to have a larger fruiting calyx.

Native to:

Tanzania

Coleus botryosus (A.J.Paton) A.J.Paton appears in other Kew resources:

First published in PhytoKeys 129: 29 (2019)

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.

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