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

The larvae of the following species of insect eat species of this genus:

Comostilopsis stillata (Pink-laced Emerald)

Rhodometra sacraria (Vestal)

No image yet

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

Species	Links to maps	FZ divisions	Content
arenastrum Boreau	Altitude Rainfall Geology	E
aviculare L.	Altitude Rainfall Geology	W,C
plebeium R.Br.	Altitude Rainfall Geology	N,W,C,E,S	Description, Image

Other sources of information about Polygonum:

Flora of Mozambique: Polygonum
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 and Petra Ballings, 2002-13

Hyde, M.A., Wursten, B.T. & Ballings, P. (2013). Flora of Zimbabwe: Genus page: Polygonum.
http://www.zimbabweflora.co.zw/speciesdata/genus.php?genus_id=515, retrieved 24 May 2013

Site software last modified: 10 June 2012 10:08pm (GMT +2)
Terms of use