2201.030 Persicaria (L.) Mill. - Knotweeds

Ronse Decraene, L.-P. & Akeroyd, J.R. (1988) Generic limits in Polygonum and related genera (Polygonaceae) on the basis of floral characters Botanical Journal of the Linnean Society 98 321-371

Description of the genus

Annual or perennial herbs, usually (in ours) erect. Ochreae present. Leaves large compared to Polygonum, usually more than 5 cm. Each inflorescence with usually more than 6 flowers, some or all inflorescences terminal, bracts similar to the leaves. Perianth segments mostly 5, petaloid, not enlarging in fruit. Stamens 8 (or 4-7 by reduction). Styles 2-3; nut biconvex or 3-angled.

Worldwide: c. 150 species, ± cosmopolitan

Zimbabwe: 2 cultivated taxa.

Insects associated with this genus:
Comostilopsis stillata (Pink-laced Emerald) Food plant
Rhodometra sacraria (Vestal) Food plant
Persicaria capitata

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

SpeciesContent
amplexicaule D. Don
capitata (Buch.-Ham. ex D. Don) H. GrossDescription, Image

Other sources of information about Persicaria:

Our websites:

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

External websites:

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

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: Persicaria.
http://www.zimbabweflora.co.zw/cult/genus.php?genus_id=516, retrieved 29 August 2016

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