It's been so mild that there is quite a bit of growing going on out there. This is Broad-leaved Pondweed, Potamogeton natans, growing in one of the many ditches. It's only in this ditch that I've come across it, unlike the ubiquitous Lemma minuta. The pondweeds are a tricky group with around twelve species. This is fairly easy to identify because the leaves float and there is often a discoloured joint at the end of the long leaf-stalk.
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