5834.000 Myriophyllum L. - Water-milfoils

Description of the genus

Glabrous, perennial, monoecious or polygamous, rarely dioecious, aquatic herbs, usually submerged but sometimes growing on mud. Stipules 0, but stipule-like outgrowths may occur at the leaf bases. Submerged leaves in whorls of 3-6, pinnatisect into undivided segments; aerial leaves whorled, opposite or alternate. Flowers mostly sessile, 1 or 2 in the axil of a leaf or bract (aquaticum) or in an emergent spike (spicatum), bisexual or unisexual. Calyx of 4 lobes (male flowers) or minute (female flowers). Petals 2 or 4 in males flowers, minute or 0 in female. Fruit separating into 4 (or fewer by abortion) 1-seeded nutlets.

Worldwide: 60 species, cosmopolitan, but especially abundant in Australia

Zambia: 2 taxa.

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

SpeciesFZ divisionsProvincesContent
aquaticum (Vell.) Verdc.Image
spicatum L.N,S

Other sources of information about Myriophyllum:

Our websites:

Flora of Botswana: Myriophyllum
Flora of Caprivi: Myriophyllum
Flora of Malawi: Myriophyllum
Flora of Zimbabwe: Myriophyllum
Flora of Zimbabwe: cultivated Myriophyllum

External websites:

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

Copyright: Mike Bingham, Annette Willemen, Bart Wursten, Petra Ballings and Mark Hyde, 2011-23

Bingham, M.G., Willemen, A., Wursten, B.T., Ballings, P. and Hyde, M.A. (2023). Flora of Zambia: Genus page: Myriophyllum.
https://www.zambiaflora.com/speciesdata/genus.php?genus_id=1028, retrieved 27 January 2023

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