Carduus nyassanus (S.Moore) R.E.Fr.

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Carduus nyassanus

Picture: Bart Wursten
Near Dam 2, Nyika National Park

Carduus nyassanus

Picture: Bart Wursten
Near Dam 2, Nyika National Park

Carduus nyassanus

Picture: Bart Wursten
Near Dam 2, Nyika National Park

Carduus nyassanus

Picture: Bart Wursten
Near Dam 2, Nyika National Park

Carduus nyassanus

Picture: Bart Wursten
Near Dam 2, 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: Carduus leptacanthus Fresen. var. nyassanus S. Moore
Common names:
Frequency:
Status: Native
Description:
Erect spiny perennial herb, up to c. 1.5 m tall. Stems simple, or sparingly branched above, coarsely ribbed, more or less pubescent, longitudinally winged; wing-segments up to c. 1.5 cm. wide and strongly spiny on the margins. Leaves crowded below, fewer and smaller above; basal leaves narrowly oblanceolate in outline, 10–35 cm long, pinnately divided, often pubescent especially on the midribs; leaf-segments up to c. 3.5 cm long near leaf apex, decreasing in size towards the leaf base; margins coarsely dentate with the teeth strongly spine-tipped. Capitula many, in dense terminal clusters 3.5–7 cm in diameter; involucre bracts numerous, 10-20 mm long, narrowly lanceolate, straw-coloured or purple-tinged, tapering to long apical spines. Corollas white, reddish-tinged or mauve, 10–13 mm long. Achenes straw-coloured or pale-brown, 4–4.5 mm long, somewhat 3–4-ribbed, hairless; pappus with numerous setae 11–12 mm long, flattened, barbellate, united at the base in a deciduous ring.
Type location:
Malawi
Notes: See Cirsium buchwaldii for comparison.
Derivation of specific name: nyassanus: of Nyassa, referring to Malawi, formerly Nyassaland, where the type was collected.
Habitat: Moist places in montane grassland and along streams.
Altitude range:
Flowering time:
Worldwide distribution: Nigeria, Cameroon, DRC, Burundi, Rwanda, Uganda, Sudan, Ethiopia, Kenya, Tanzania, Malawi and Zambia.
Zambian distribution (Flora Zambesiaca): E
Zambian distribution (Provinces): Mc
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 3 April 2019
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 87. (Includes a picture).

Phiri, P.S.M. (2005). A Checklist of Zambian Vascular Plants Southern African Botanical Diversity Network Report No. 32 Page 29.

Pope, G.V. (1992). Compositae Flora Zambesiaca 6(1) Pages 50 - 51. (Includes a picture).

Other sources of information about Carduus nyassanus:

Our websites:

Flora of Malawi: Carduus nyassanus

External websites:

African Plants: A Photo Guide (Senckenberg): Carduus nyassanus
Biodiversity Explorer (Biodiversity of southern Africa): Carduus nyassanus
BHL (Biodiversity Heritage Library): Carduus nyassanus
EOL (Encyclopedia of Life): Carduus nyassanus
ePIC (electronic Plant Information Center): Carduus nyassanus
Flora Zambesiaca web site: Carduus nyassanus
GBIF (Global Biodiversity Information Facility): Carduus nyassanus
Google: Web - Images - Scholar
GRIN (Germplasm Resources Information Network): Carduus nyassanus
IPNI (International Plant Names Index): Carduus nyassanus
Ispot Southern Africa: Carduus nyassanus
JSTOR Plant Science: Carduus nyassanus
Kew Herbarium catalogue: Carduus nyassanus
Mansfeld World Database of Agricultural and Horticultural Crops: Carduus nyassanus
The Plant List (version 1.1): Carduus nyassanus
Tropicos: Carduus nyassanus


Copyright: Mike Bingham, Annette Willemen, Bart Wursten, Petra Ballings and Mark Hyde, 2011-19

Bingham, M.G., Willemen, A., Wursten, B.T., Ballings, P. and Hyde, M.A. (2019). Flora of Zambia: Species information: Carduus nyassanus.
https://www.zambiaflora.com/speciesdata/species.php?species_id=201130, retrieved 24 July 2019

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