Vernonia tuberifera R.E. Fr.

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Vernonia tuberifera

Habit
Stream side seepage grassland at centre of large dambo grassland plain
Mwinilunga District
Nov 2025
Photo: Nick Wightman

Vernonia tuberifera

Plant
Stream side seepage grassland at centre of large dambo grassland plain
Mwinilunga District
Nov 2025
Photo: Nick Wightman

Vernonia tuberifera

Flowers
Stream side seepage grassland at centre of large dambo grassland plain
Mwinilunga District
Nov 2025
Photo: Nick Wightman

Vernonia tuberifera

Flowers
Stream side seepage grassland at centre of large dambo grassland plain
Mwinilunga District
Nov 2025
Photo: Nick Wightman

Vernonia tuberifera

Flowers
Stream side seepage grassland at centre of large dambo grassland plain
Mwinilunga District
Nov 2025
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: Local
Status: Native
Description:
An erect slender perennial herb, to c. 37 cm tall from a small woody rootstock. Rootstock producing 2-5 subsessile root-tubers; tubers up to 3 x 1.5 cm, subfusiform, tapering into long thong-like roots. Stems annual, 1-several, simple or sparsely branched above, leafy, ribbed, ± coarsely pubescent and glandular, more densely so towards the apex, pilose below; indumentum a mixture of ± appressed short-stalked hairs and long patent hairs, the hairs flagelliform with an often purplish stalk and an elongate terminal cell. Leaves subsessile, to 10 x 2 cm, narrowly oblanceolate, apex obtuse, base tapering-cuneate, margins subserrate with callose-tipped teeth but entire near the base, lamina scabridulous-pilose and glandular on both surfaces; the hairs scattered, patent, flagelliform, becoming rigid below; venation not raised reticulate. Capitula solitary and terminal on stems, or 2-3 on short branches. Involucres 9-11 x 11-18 mm, broadly obconic or cup-shaped. Phyllaries several-seriate, apicies differentiated but not appendaged, purple-tipped and glandular at the apices; the outer phyllaries 6-8 x 1-2 mm, linear-lanceolate, puberulent; the middle phyllaries to c. 9 x 3 mm, oblong-lanceolate, ± acuminate at apex, glabrous or puberulent where exposed; the inner phyllaries to c. 10 mm long, linear-acute. Florets c. 20 per capitulum. Corollas purple or mauve, to c. 15 mm long, slender tubular in lower two thirds abruptly widening into a cylindric limb exerted above the pappus. Achenes (immature) c. 2 mm. long, ribbed, strigose-hispid; pappus several-seriate, copious, somewhat caducous, setae increasing in length to c. 8 mm. long on inside, somewhat flattened and barbellate on the margins.
Type location:
Zambia
Notes:
Derivation of specific name: tuberifera: tuber bearing
Habitat: Watershed dambos
Altitude range: (metres)
Flowering time:Oct - Dec
Worldwide distribution: Zambia and Angola
FZ divisions: N,W
Zambian distribution (Provinces): Nw,Lp
Growth form(s): Perennial.
Endemic status: Near Endemic
Red data list status:
Insects associated with this species:
Spot characters: Display spot characters for this species
Images last updated: Tuesday 31 March 2026
Literature:

Pope, G.V. (1992). Compositae Flora Zambesiaca 6(1) Pages 133 - 136. (Includes a picture).


Other sources of information about Vernonia tuberifera:

External websites:

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


Copyright: Mike Bingham, Annette Willemen, Nicholas Wightman, Bart Wursten, Petra Ballings and Mark Hyde, 2011-26

Bingham, M.G., Willemen, A., Wightman, N., Wursten, B.T., Ballings, P. and Hyde, M.A. (2026). Flora of Zambia: Species information: Vernonia tuberifera.
https://www.zambiaflora.com/speciesdata/species.php?species_id=201720, retrieved 5 April 2026

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