Damp area in woodlands. Abundant.
common in the Tower of London (with the Yeomen Warders taking care of them), a few in cages and more free
one seen flying upstream along the Thames
common in the Kensington Gardens
common in Kensington Gardens
2 in a garden
Found along a canal in London. I don't know British wildflowers at all; can anyone help? ~4 cm across. I have a growth-habit shot I can upload if it will help. The petals curl as they age; that and the very long leaves are fairly distinctive.
Found along a canal in London. Thanks to Dave Appleton for the ID!