You put a (beautiful) picture of a caterpillar in the Plants section?
To ID the plant, I'd like more pictures, please: the overall plant, a clear shot of the leaf, the leaf margin, and some input as to why you think it's Salix.
How to take close-ups with cheap phone and hand-lens:
Field Guides for Budding Botanists:
... non-plant identifications and adding interactions with the associated plants.
As you no doubt know the common twisted willow is Salix babylonica var. pekinensis 'Tortuosa' syn. (I assume) Salix matsudana 'Tortuosa', aka Corkscrew Willow. (The RHS Plantfinder only has the former, even though the latter is quite widely sold.)
No I didn't know that! Please add it as a revised identification.
The observation was originally submitted for the beautiful caterpillar (a poplar hawk-moth) but in order to record the interaction I had to add the observation again to record the plant!
Lat/Lng: 50.611152138245, -2.4624502658844
OS grid ref: SY673791