No idea on this one! Do the white fluffy bits and the brown spikes belong to the same species of plant?
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Brown spikes on the right C. sylvatica which has not yet flowered.
White fluffy spikes C. divulsa or similar.
I've certainly seen Carex sylvatica in the same wood. I do find sedges difficult, they look so different at each stage of development.
Lat/Lng: 52.4539, -0.5979
OS grid ref: SP953849