Plectranthus alboviolaceus Gürke

This species is accepted, and its native range is Kenya to S. Tropical Africa.

[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: Tanzania, Rungwe District: Kalengalenga Mts, Goetze 1140 (E!, iso., K!, photo.)
Morphology General Habit
Aromatic perennial soft-wooded shrub 0.5–3(–4) m tall
Morphology Stem
Stems ascending, quadrangular, branched near apex, sparsely pubescent to pubescent with patent and antrorse, often coloured eglandular hairs, with hairs shorter and less coloured or glabrous below and with glandular hairs and scattered yellowish sessile glands on the inflorescence axis
Morphology Leaves
Leaves spreading, petiolate, sometimes reported as slightly fleshy; blades ovate, 2.5–18 × 1.5–11 cm, serrate to crenate with teeth sometimes 1–2toothed, apex acute to acuminate, base cuneate, attenuate at petiole; often whitepubescent in bud, pubescent or sparsely pubescent, with yellow sessile glands; petiole (7–)18–100 mm long
Morphology Reproductive morphology Inflorescences
Inflorescence lax, with 4–6-flowered verticils ± 10 mm apart, with bracts subtending sessile 2–3-flowered cymes; bracts elliptic, 2–5 mm long, villose at margin, persistent; pedicels 1–4 mm long, slightly flattened, ascending
Morphology Reproductive morphology Flowers Calyx
Calyx 3 mm long, pubescent or puberulent, with yellowish sessile glands; fruiting calyx spreading, 6.5–8 mm long, tubular, straight, with pedicel attaching ± at the centre of the calyx base; throat oblique; posterior lip broadly elliptic, apex obtuse, curving upwards, not decurrent; lobes of anterior lip curving upwards; lateral lobes lanceolate, closer to median lobes than posterior lip; median lobes lanceolate, longer than lateral lobes, subulate at apex
Morphology Reproductive morphology Flowers Corolla
Corolla white to cream with purple markings on throat, 5–8(–10) mm long; tube 5–6 mm long, curving slightly downward, saccate below midpoint, constricted near throat; posterior lip ± equal to or slightly longer than anterior lip, reflexed towards tube; anterior lip 2–3(–4) mm long, deflexed at anthesis
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens anterior and posterior on each side fused for a short distance, anterior pair not fused together
Morphology Reproductive morphology Fruits
Nutlets dark brown with irregular reddish blotches, broadly ovoid, 1.5 mm long, minutely reticulate, producing a small amount of mucilage when wet
Figures
Fig 39: 7, p 238 & 40: 3, p 248.
Ecology
Evergreen forest, often by paths or rivers; 1500–2800 m
Conservation
Least concern; widespread
Distribution
Range: Congo-Kinshasa (Kivu), Ethiopia, Zambia, Malawi and Mozambique Flora districts: K4 K7 T1 T2 T3 T4 T5 T6 T7

Native to:

Kenya, Malawi, Mozambique, Tanzania, Zambia, Zaïre

Recorded in error in:

Ethiopia

Plectranthus alboviolaceus Gürke appears in other Kew resources:

Date Reference Identified As Barcode Type Status Has image?
Dec 1, 2012 Hemp [5364], Tanzania K000735699 No
Brummitt, R.K. [12345], Malawi 36294.000 No
Timberlake, J. [5093], Mozambique K000613473 No

First published in Bot. Jahrb. Syst. 30: 397 (1901)

Accepted by

  • Govaerts, R. (2003). World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew.
  • Hedberg, I., Friis, I. & Persson, E. (2009). Flora of Ethiopia and Eritrea 1: 1-305. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
  • 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.
  • 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.
  • Paton, A.J., Bramley, G., Ryding, O., Polhill, R.M., Harvey, Y.B., Iwarsson, M., Otieno, D., Balkwill, K., Phillipson, P.B., Harley, R.M. & Willis, F. (2013). Flora Zambesiaca 8(8): 1-346. Royal Botanic Gardens, Kew.
  • Strugnell, A.M. (2006). A checklist of the Spermatophytes of Mt. Mulanje, Malawi Scripta Botanica Belgica 34: 1-199.
  • Timberlake, J.R., Bayliss, J., Alves, T., Francisco, J., Harris, T., Nangoma, D. & de Sousa, C. (2009). Biodiversity and Conservation of Mchese Mountain, Malawi. Report produced under the Darwin Initiative Award 15/036: 1-71. Royal Botanic Gardens, Kew.

Literature

Kew Backbone Distributions

  • Hedberg, I., Friis, I. & Persson, E. (2009). Flora of Ethiopia and Eritrea 1: 1-305. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
  • 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.
  • Strugnell, A.M. (2006). A checklist of the Spermatophytes of Mt. Mulanje, Malawi Scripta Botanica Belgica 34: 1-199.

Flora of Tropical East Africa

  • E.J. 30: 397 (1901)
  • Fl. Eth. 5: 597 (2006).
  • K.T.S.L.: 632 (1994)
  • T.T.C.L.: 258 (1949)
  • U.K.W.F. ed. 2: 294 (1994)

  • 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 2022. 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 2022. 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