555.000 Borassus L.

Description of the genus

Dioecious trees; stems often swollen in upper half. Leaves very large, persistent but eventually falling to leave a bare trunk; petiole armed with irregular black teeth, varying greatly in size and shape; lamina palmate or costapalmate, divided into numerous usually bifid segments; leaf segments with conspicuous cross-veins and lacking black spots. Inflorescences axillary. Male inflorescences composed of 3-6 partial inflorescences the branches of which terminate in 3 or more cylindric flower-bearing branches, each bearing pits enclosing a cincinnus of male flowers. Male flowers: sepals 3; corolla 3-lobed; stamens 6. Female inflorescence different to the male; simple or with 1-2 branches, each bearing large connate bracts with a solitary female flower in each axis. Female flowers: sepals 3; petals 3, similar to sepals; staminodes 6; ovary spherical, 3-locular. Fruit rounded, containing 1-3 pyrenes, with stigmatic remains borne at the apex.

Worldwide: 5 species occurring in Africa, Madagascar, India, Indochina, Indonesia, New Guinea and possibly N Australia.

Zimbabwe: 1 taxon.

Borassus aethiopum

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

SpeciesFZ divisionsContent
aethiopum Mart.[CR]E,SDescription, Image

Other sources of information about Borassus:

Our websites:

Flora of Malawi: Borassus
Flora of Mozambique: Borassus
Flora of Zambia: Borassus

External websites:

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

Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2002-16

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2016). Flora of Zimbabwe: Genus page: Borassus.
http://www.zimbabweflora.co.zw/speciesdata/genus.php?genus_id=296, retrieved 29 June 2016

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