Coleus articulatus (I.M.Johnst.) A.J.Paton

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Photo: Bart Wursten
Chelinda road, Nyika National Park

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Synonyms:	Holostylon katangense (De Wild.) Robyns & Lebrun Plectranthus hockii De Wild. Plectranthus katangensis De Wild. Symphostemon articulatus I.M. Johnst.
Common names:
Frequency:
Status:	Native
Description:	Perennial herb with several stems up to 35 cm high, sticky glandular with hair-like and sessile yellow to orange glands. Stems usually leafless when flowering, growing from a large fleshy rootstock. Leaves opposite, mostly confined to separate sterile shoots, elliptic, 12-40 mm long, sparsely hairy and glandular-punctate; margin entire or serrate; petiole 0-2 mm long. Inflorescence lax with flowers more or less regularly spaced along the flowering stem on pedicels 4-14 mm long.Calyx 3-4 mm long, densely pubescent with both non-glandular and glandular hairs and sessile glands; lobes more or less equal, triangular. Corolla 10-18 mm long, pale to dark blue, purple or rarely white; upper lip slightly shorter than lower lip; lower lip deeply boat-shaped, enclosing the stamens, sparsely hairy and glandular.
Notes:
Derivation of specific name:	hockii: named after A. Hock, plant collector in Congo who collected the type specimen in 1910.
Habitat:	As a pyrophyte in grassland or woodland.
Altitude range:	1500 - 2200 m
Flowering time:
Worldwide distribution:	Angola, DRC, 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:	Saturday 8 September 2018
Literature:	Burrows, J.E. & Willis, C.K. (eds) (2005). Plants of the Nyika Plateau Southern African Botanical Diversity Network Report No. 31 SABONET, Pretoria Page 188. as Plectranthus katangensis Paton, A.J. et al. (2013). Lamiaceae Flora Zambesiaca 8(8) Pages 232 - 233. as Plectranthus hockii (Includes a picture).

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Flora of Zambia: Coleus articulatus

External websites:

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