Definitely a Callitriche sp. It isn't C. palustris (very rare in the UK), or C. stagnalis (really common, but with rounder submerged leaves).Callitriche palustris
I think the key probably lies in some habitat distribution maps i have found.Hi all, Definitely a Callitriche sp. It isn't C. palustris (very rare in the UK), or C. stagnalis (really common, but with rounder submerged leaves).
After that it is pick a name really, Callitriche truncata is definitely an option.
cheers Darrel