Other Fresh Water Plants

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These are plants that grow in fresh water, such as in rivers, lakes and swamps. But this category excludes Rushes & Sedges, Lilies & Irises, Daisies and Ferns which have their own categories.

Other Fresh Water Plants

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Discussion

JaneR wrote:

Yesterday

this needs a bit more information to work out which of three possible genera this is.
Are you able to check the following:
Q: Is underside of the thallus green; occasionally purplish; or tinged red ?
Q: how many roots are dangling from each thallus: just 1; up to 12; or up to 18 ?

A clear close-up of thallus taken vertically from above would be a help too.

Lemna sp.

JaneR wrote:

17 Feb 2025

i you can (perhaps other photos ?) count the number of leaves per whorl: a very useful character, helps to trim down to a few species, sometimes even just one ! .

Myriophyllum sp.

Tapirlord wrote:

17 Feb 2025

Yeah I see what you mean. Back to the drawing board

Myriophyllum sp.

JaneR wrote:

16 Feb 2025

Emergent leaves for M. Gracile are alternate. In the photo, these look whorled.

Myriophyllum sp.

waltraud wrote:

2 Feb 2025

Oha; many thanks for Id Ciaran; we don't come across Lythrum often; now I remember it in a drainline close to small dam further to the south...