Cyanastrum johnstonii Baker

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Cyanastrum johnstonii

Lusaka SE, cultivated from tubers collected Regional Research Station, Mansa; Nov 2010.
Photo: Mike Bingham

Cyanastrum johnstonii

Protea Hill Farm
cultivated from tubers collected from Regional Research Station, Mansa
Jul 2010
Photo: Mike Bingham

Cyanastrum johnstonii

Lusaka SE, cultivated from tubers collected from Research Station, Mansa; Nov 2008.
Photo: Mike Bingham

Cyanastrum johnstonii

Lusaka SE, cultivated from tubers collected from Regional Research Station, Mansa; Nov 2008.
Photo: Mike Bingham

Cyanastrum johnstonii

Protea Hill Farm
cultivated from tubers collected from Regional Research Station, Mansa
Jul 2010
Photo: Mike Bingham

Cyanastrum johnstonii

Seeds
Light shade amongst rocks
Dabuyu Farms, Lilayi
Jan 2020
Photo: Nick Wightman

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

Synonyms:
Common names:
Frequency: Locally common
Status: Native
Description:
Leaf held erect, lamina broadly ovate, the base cordate. The inflorescence a raceme with up to 17 flowers, the buds erect, the flowers nodding. Tepals 6, pale blue; anthers yellow.
Type location:
Zambia, hills between Lakes Tanganyika and Nyasa
Notes: The species has been grown in Lusaka for many years, on well drained, shallow soil requiring little attention, but in a rocky site inaccessible to molerats.
Derivation of specific name: johnstonii: After H.H. Johnston who collected the type specimen.
Habitat: Light shade, amongst rocks.
Altitude range: (metres) 750 - 1530 m
Flowering time: Nov - Dec
Worldwide distribution: Katanga Prov. of D.R. Congo, central Tanzania, Mozambique and NE Zambia.
National distribution: N
Zambian distribution (Provinces): Lp,N
Growth form(s):
Endemic status:
Red data list status: Lower Risk - least concern
Insects associated with this species:
Spot characters: Display spot characters for this species
Images last updated: Wednesday 12 February 2020
Literature:

Cowley, E.J. & Brummitt, R.K. (2001). Tecophilaeaceae Flora Zambesiaca 12(3) Pages 24 - 25. (Includes a picture).


Other sources of information about Cyanastrum johnstonii:

Our websites:

Flora of Mozambique: Cyanastrum johnstonii

External websites:

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


Copyright: Mike Bingham, Annette Willemen, Nicholas Wightman, Bart Wursten, Petra Ballings and Mark Hyde, 2011-25

Bingham, M.G., Willemen, A., Wightman, N., Wursten, B.T., Ballings, P. and Hyde, M.A. (2025). Flora of Zambia: Species information: Cyanastrum johnstonii.
https://www.zambiaflora.com/speciesdata/species.php?species_id=211580, retrieved 3 April 2025

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