Spermatophyta: Dicotyledonae: Archichlamydeae: Caryophyllales

Polygonaceae - Knotweed family

Graham, R.A. (1958) Polygonaceae Flora of Tropical East Africa

Nogueira, I., Ortiz, S. & Paiva, J.A.R. (2006) Polygonaceae Flora Zambesiaca 9(3)

Description of the family

Herbs (mostly, in ours), shrubs, climbers or rarely trees. Stems usually with sheathing stipules (ochreae). Leaves simple, alternate (rarely subopposite). Flowers actinomorphic, bisexual or unisexual. Petals 0. Perianth segments 3-6, sepaloid or petaloid, free or connate, persistent. Ovary superior, 1-locular, with a solitary ovule. Fruit a nut, indehiscent, hard, 3-angled or biconvex, usually enveloped in the perianth. Seeds with abundant endosperm.

Worldwide: 46 genera and 1100 species, ± cosmopolitan, but especially northern temperate.

Zimbabwe: 8 cultivated genera and 9 cultivated taxa.

Persicaria capitata

Links to cultivated genera:     View: living plant images - herbarium specimen images - all images for this family

GenusContent
Antigonon Endl.Description, Image
Coccoloba P. BrowneDescription
Fagopyrum Mill.Description
Fallopia Adans.Description
Homalocladium (F. Muell.) L.H. BaileyDescription, Image
Persicaria (L.) Mill.Description, Image
Rumex L.Description
Triplaris Loefl. ex L.

Other sources of information about Polygonaceae:

Our websites:

Flora of Botswana: Polygonaceae
Flora of Caprivi: Polygonaceae
Flora of Malawi: Polygonaceae
Flora of Malawi: cultivated Polygonaceae
Flora of Mozambique: Polygonaceae
Flora of Mozambique: cultivated Polygonaceae
Flora of Zambia: Polygonaceae
Flora of Zimbabwe: Polygonaceae

External websites:

GRIN (Germplasm Resources Information Network) taxonomy for plants report for Polygonaceae
Google: Web - Images - Scholar


Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2002-17

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2017). Flora of Zimbabwe: Cultivated plants: Family page: Polygonaceae.
http://www.zimbabweflora.co.zw/cult/family.php?family_id=181, retrieved 22 August 2017

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