7350.000 Plectranthus L'Hér.



HOLOSTYLON Robyns & J.-P. Lebrun



Description of the genus

Annual or perennial herbs or subshrubs. Stems herbaceous or woody below, sometimes succulent. Inflorescence paniculate, racemose or subspicate, usually terminal. Flowers in whorls, few-flowered cymes or dichasia, occasionally solitary. Bracts small, clearly differentiated from the leaves. Calyx 2-lipped (the upper lip consisting of a large single tooth, the lower lip of 4 lanceolate-triangular or subulate teeth) or subequally 5-toothed. Corolla 2-lipped, tube usually bent and expanded near the base; upper lip usually 4-lobed, shorter than the boat-shaped lower lip. Stamens 4; filaments free or united at base. Stigma shortly 2-lobed. Nutlets smooth.

Comment: Recent phylogenetic studies have resulted in a considerable reduction in the number of species in the genus Plectranthus. Many species have now been (re)assigned to the revived genus Coleus or to the newly described genus Equilabium.

Worldwide: c. 300 species from tropical and warm parts of the Old World

Malawi: 4 taxa.

The larvae of the following species of insect eat species of this genus:
Junonia orithya (Eyed pansy)
Precis archesia (Garden commodore, Garden inspector)
Plectranthus swynnertonii

Links to taxa:     View: living plant images - herbarium specimen images - all images for this genus

SpeciesFZ divisionsContent
alboviolaceus GürkeN,S
elegans Britten[End][VU]S
mandalensis Baker[NrEnd]S
swynnertonii S. MooreSDescription, Image

Other sources of information about Plectranthus:

Our websites:

Flora of Mozambique: Plectranthus
Flora of Zambia: Plectranthus
Flora of Zimbabwe: Plectranthus
Flora of Zimbabwe: cultivated Plectranthus

External websites:

African Plants: A Photo Guide (Senckenberg): Plectranthus
BHL (Biodiversity Heritage Library): Plectranthus
EOL (Encyclopedia of Life): Plectranthus
GBIF (Global Biodiversity Information Facility): Plectranthus
Google: Web - Images - Scholar
iNaturalist: Plectranthus
IPNI (International Plant Names Index): Plectranthus
JSTOR Plant Science: Plectranthus
Mansfeld World Database of Agricultural and Horticultural Crops: Plectranthus
Plants of the World Online: Plectranthus
Tropicos: Plectranthus
Wikipedia: Plectranthus

Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2014-24

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2024). Flora of Malawi: Genus page: Plectranthus.
https://www.malawiflora.com/speciesdata/genus.php?genus_id=1231, retrieved 13 April 2024

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