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

Zimbabwe: 2 taxa.

Myriophyllum aquaticum

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

SpeciesFZ divisionsContent
aquaticum (Vell.) Verdc.N,W,C,E,SDescription, Image
spicatum L.W

Other sources of information about Myriophyllum:

Our websites:

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

External websites:

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

Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2002-24

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2024). Flora of Zimbabwe: Genus page: Myriophyllum.
https://www.zimbabweflora.co.zw/speciesdata/genus.php?genus_id=1028, retrieved 15 June 2024

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