Coleus sigmoideus (A.J.Paton) A.J.Paton

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Coleus sigmoideus

Photo: Bart Wursten
Along road to Lake Kaulime, Nyika National Park

Coleus sigmoideus

Photo: Bart Wursten
Along road to Lake Kaulime, Nyika National Park

Coleus sigmoideus

Photo: Bart Wursten
Along road to Lake Kaulime, Nyika National Park

Coleus sigmoideus

Photo: Bart Wursten
Along road to Lake Kaulime, Nyika National Park

Coleus sigmoideus

Photo: Bart Wursten
Along road to Lake Kaulime, Nyika National Park

Coleus sigmoideus

Photo: Bart Wursten
Along road to Lake Kaulime, Nyika National Park

Coleus sigmoideus

Photo: Bart Wursten
Chelinda road before Chozi turn-off, Nyika National Park

Coleus sigmoideus

Photo: Bart Wursten
Chelinda road before Chozi turn-off, Nyika National Park

Coleus sigmoideus

Photo: Bart Wursten
Chelinda road before Chozi turn-off, Nyika National Park

Coleus sigmoideus

Photo: Bart Wursten
Chelinda road before Chozi turn-off, Nyika National Park

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Species details: Click on each item to see an explanation of that item (Note: opens a new window)

Synonyms: Plectranthus sigmoideus A.J. Paton
Common names:
Frequency:
Status: Native
Description:
Perennial herb 20-40 cm high, with mostly unbranched, hairy stems growing from an ovoid to cylindrical tuber. Leaves sometimes concentrated towards the base of the plant, ovate, 15-40 mm long, sparsely hairy and with reddish glands; margin deeply and sometimes coarsely toothed; petiole 1-10 mm long. Inflorescence lax with 10-15-flowered clusters up to 25 mm apart; bracts cup-shaped, up to 10 mm long but only in very young inflorescences and falling quickly; pedicels 5-10 mm long. Calyx up to 6 mm long in fruit, glandular pubescent; upper lip elliptic to obovate, curving upwards; lower lip with median lobes 4-5 mm long with teeth 1 mm long. Corolla white to pale blueish-purple, 8-15 mm long, pubescent with redd sessile glands; tube s-shaped; upper lip erect, shorter than lower lip; lower lip 3-8 mm long, deeply boatshaped, enclosing the stamens.
Notes: Plants on the Nyika Plateau tend to have larger and broader leaves than other populations.
Derivation of specific name: sigmoideus: S-shaped, referring to the shape of the flower tube.
Habitat: In grassland and woodland.
Altitude range: 1200 - 2300 m
Flowering time:
Worldwide distribution: DRC, southern Tanzania, Malawi and Zambia.
Malawi distribution: N
Growth form(s):
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters: Display spot characters for this species
Content last updated: Wednesday 2 October 2019
Literature:

Paton, A.J. et al. (2013). Lamiaceae Flora Zambesiaca 8(8) Pages 270 - 271. as Plectranthus sigmoideus (Includes a picture).

Other sources of information about Coleus sigmoideus:

Our websites:

Flora of Zambia: Coleus sigmoideus

External websites:

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


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: Species information: Coleus sigmoideus.
https://www.malawiflora.com/speciesdata/species.php?species_id=208030, retrieved 29 March 2024

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