9237.000 Bidens L.

Beentje, H.J. & Ghazanfar, S.A. (eds.) (2005) Compositae (Part 3) Flora of Tropical East Africa

Wild, H. (1967) The Compositae of the Flora Zambesiaca area. 1. Heliantheae. Kirkia 6(1) 1-62

Description of the genus

Annual or perennial herbs. Leaves opposite, divided or compound, namely 2-3-pinnatisect, 3-foliolate or pinnate. Leaflets or lobes varying from linear to broadly ovate. Capitula usually radiate. Phyllaries in 2 series; outer herbaceous, inner usually scarious. Receptacular scales present. Ray florets neuter, sometimes 0; disk florets bisexual. Rays yellow, orange, golden, white or 0. Achenes bilaterally flattened or 3-4(-5)-angled, linear to broadly obovate; margin often thickened or winged. Pappus of 0-5 barbed (forwardly or backwardly) bristles.

Worldwide: 340 species, cosmopolitan, most in the New World but 63 species in Africa.

Zimbabwe: 0 cultivated taxa.

Cosmos bipinnatus

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


Other sources of information about Bidens:

Our websites:

Flora of Botswana: Bidens
Flora of Caprivi: Bidens
Flora of Malawi: Bidens
Flora of Mozambique: Bidens
Flora of Zambia: Bidens
Flora of Zimbabwe: Bidens

External websites:

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

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: Cultivated plants: genus page: Bidens.
http://www.zimbabweflora.co.zw/cult/genus.php?genus_id=1532, retrieved 26 October 2016

Site software last modified: 12 December 2015 7:49am (GMT +2)
Terms of use