2204.000 Oxygonum Burch.

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, rarely shrubs. Ochreae present. Flowers polygamous and heterostylous, borne in axillary elongated racemes. Male flowers with a very short tube and 4-5 petaloid perianth segments. Bisexual flowers tubular; perianth segments persistent, the tube accrescent in fruit. Pedicels of bisexual flowers lengthening and thickening, those of the male flowers withering. Stamens 8, in 2 series, 5 outer and 3 inner. Styles 3. Fruiting perianth unarmed or with 3 prickles, sometimes winged.

Worldwide: 30 species in tropical and South Africa and Madagascar

Malawi: 3 taxa.

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

SpeciesFZ divisionsContent
buchananii (Dammer) J.B. GillettS
sinuatum (Hochst. & Steud. ex Meisn.) DammerN,C,SDescription, Image
stuhlmannii DammerN

Other sources of information about Oxygonum:

Our websites:

Flora of Botswana: Oxygonum
Flora of Caprivi: Oxygonum
Flora of Caprivi: cultivated Oxygonum
Flora of Mozambique: Oxygonum
Flora of Zambia: Oxygonum
Flora of Zimbabwe: Oxygonum

External websites:

African Plants: A Photo Guide (Senckenberg): Oxygonum
BHL (Biodiversity Heritage Library): Oxygonum
EOL (Encyclopedia of Life): Oxygonum
GBIF (Global Biodiversity Information Facility): Oxygonum
Google: Web - Images - Scholar
iNaturalist: Oxygonum
IPNI (International Plant Names Index): Oxygonum
JSTOR Plant Science: Oxygonum
Mansfeld World Database of Agricultural and Horticultural Crops: Oxygonum
Plants of the World Online: Oxygonum
Tropicos: Oxygonum
Wikipedia: Oxygonum

Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2014-24

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2024). Flora of Malawi: Genus page: Oxygonum.
https://www.malawiflora.com/speciesdata/genus.php?genus_id=518, retrieved 15 April 2024

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