Syncolostemon canescens (Gürke) D.F. Otieno

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Photo: Bart Wursten
Haka Game Park

Photo: Bart Wursten
Malilangwe Wildlife Reserve

Photo: Bart Wursten
Cleveland Dam, Harare

Photo: Bart Wursten
Mutirikwi CL, Murray MacDougall Drive

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Synonyms:	Hemizygia canescens (Gürke) Ashby Hemizygia dinteri Briq. Hemizygia mossiana (Good) Ashby Hemizygia petrensis (Hiern) Ashby Orthosiphon canescens Gürke
Common names:
Frequency:	Frequent
Status:	Native
Description:	Aromatic perennial herb up to c. 60 cm tall, somewhat woody and branching near the base. Stems more or less densely covered with long spreading hairs, rarely almost hairless. Leaves opposite, linear-lanceolate to ovate-lanceolate, up to 5 cm long, more or less densely hairy, often with mixed long and short hairs; margin distinctly to obscurely toothed. Inflorescence simple or with a pair of branches near the base, lax, 8-20 cm long; verticils 4-6-flowered; bracts falling early, ovate, 3 × 2 mm. Calyx 6-8 mm long, glandular-hairy. Corolla white, pinkish, lilac or violet, 13-15 mm long; tube 9-12 mm long; lower lip 3 mm long. Stamens exserted beyond the lower lip.
Notes:	This species is very similar to S. linearis and several intermediate specimens are known from the Matobo area. These have the lower leaves 5 mm wide or more, but upper leaves similar to those of S. linearis.
Derivation of specific name:	canescens: covered with a grey pubescence or greyish in colour.
Habitat:	Among rocks and in open places and water-courses in semi-arid woodland.
Altitude range: (metres)	Up to 1560 m
Flowering time:	Nov - Feb
Worldwide distribution:	Angola, Botswana, northern Namibia, Zimbabwe and Limpopo and Mpumalanga, South Africa. Likely to occur also in Mozambique as some known collections have been found very close to the border.
Zimbabwe distribution:	N,W,C,E,S
Growth form(s):
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters:	Display spot characters for this species
Literature:	Mapaura, A. & Timberlake, J. (eds) (2004). A checklist of Zimbabwean vascular plants Southern African Botanical Diversity Network Report No. 33 Sabonet, Pretoria and Harare Page 55. As Hemizygia petrensis Paton, A.J. et al. (2013). Lamiaceae Flora Zambesiaca 8(8) Pages 144 - 145. Setshogo, M.P. (2005). Preliminary checklist of the plants of Botswana. Sabonet Report no. 37. Sabonet, Pretoria and Gaborone Page 78. as Hemizygia petrensis Timberlake, J.R. & Childes, S.L. (2004). Biodiversity of the Four Corners Area: Technical Reviews Volume Two (Chapter 5-15) Appendix 5-1: Plant Checklist Occasional Publications in Biodiversity 15 Page 215. as Hemizygia petrensis

Other sources of information about Syncolostemon canescens:

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Flora of Botswana: Syncolostemon canescens
Flora of Caprivi: Syncolostemon canescens
Flora of Mozambique: Syncolostemon canescens

External websites:

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