Heracleum L - Hogweeds

Cannon, J.F.M. (1978) Apiaceae Flora Zambesiaca 4

Description of the genus

Perennial, biennial or annual herbs. Leaves pinnately divided, usually with broad segments. Umbels compound; bracts 0; bracteoles several. Calyx teeth minute or obsolete, unequal; petals white (sometimes flushed with pink, especially in bud), often markedly unequal and radiate, those on the outer margin of the umbel being much larger than those on the inside, the whole umbel therefore tending to function like a capitulum in attracting insects, although the individual flowers remain quite distinct. Fruit orbicular to broadly obovate, very strongly dorsally compressed, with a broad commissure. Marginal ridges expanded to form a broad wing, the dorsal ones filiform; wings somewhat thickened and closely appressed to those of the opposing mericarp.

Worldwide: c. 60 species in the temperate northern hemisphere and mountainous areas in Africa.

Malawi: 1 taxon.

No image yet

Links to taxa:     View: living plant images - herbarium specimen images - all images for this genus

SpeciesFZ divisionsContent
abyssinicum (Boiss.) NormanN

Other sources of information about Heracleum:

External websites:

ePIC (electronic Plant Information Center): Heracleum
Flora Zambesiaca web site: Heracleum
Google: Web - Images - Scholar
GRIN (Germplasm Resources Information Network) taxonomy for plants report for Heracleum
Wikipedia: Heracleum
IPNI (International Plant Names Index): Heracleum
Kew Herbarium catalogue: Heracleum

Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2014-21

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2021). Flora of Malawi: Genus page: Heracleum.
https://www.malawiflora.com/speciesdata/genus.php?genus_id=2477, retrieved 16 June 2021

Site software last modified: 12 October 2020 11:05pm
Terms of use