2201.000 Polygonum L. - Knotgrasses

Description of the genus

Annual or perennial herbs, usually (in ours) prostrate. Ochreae present. Leaves small compared to Persicaria. Inflorescences all axillary, each with 6 or fewer flowers; bracts similar to the leaves. Perianth segments 4, petaloid, not enlarging in fruit. Stamens 8. Styles 3, free; nut 3-angled.

Worldwide: 20 species in northern temperate zones

Zimbabwe: 3 taxa.

The larvae of the following species of insect eat species of this genus:
Comostilopsis stillata (Pink-laced Emerald)
Rhodometra sacraria (Vestal)
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Links to taxa:     View: living plant images - herbarium specimen images - all images for this genus

SpeciesLinks to mapsFZ divisionsContent
arenastrum BoreauE
aviculare L.W,C
plebeium R.Br.N,W,C,E,SDescription, Image

Other sources of information about Polygonum:

Our websites:

Flora of Mozambique: Polygonum
Flora of Zambia: Polygonum

External websites:

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

Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2002-14

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2014). Flora of Zimbabwe: Genus page: Polygonum.
http://www.zimbabweflora.co.zw/speciesdata/genus.php?genus_id=515, retrieved 25 April 2014

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