Rare British daffodils may be hiding in plain sight in gardens and parks and experts want to track them down. They have drawn up a wanted list of long-lost varieties linked to local places, such as the vibrant "bonfire yellow" daffodil associated with bonfire nights in Sussex.

With an estimated 31,000 varieties of daffodils cultivated worldwide, the UK has long been a hub for the much-loved flower. Now, the RHS — which maintains the official register