Water Starwort (Callitriche)

Water Starwort (Callitriche)

Observation - Water Starwort (Callitriche) - UK and Ireland. Description: A freshwater pond on the RSB reserve. I'm reasonably confident that this is a water starwort but I've no idea which one. Can anyone help?

A freshwater pond on the RSB reserve. I'm reasonably confident that this is a water starwort but I've no idea which one. Can anyone help?