tree puzzled

Batsford Arboretum is a 55-acre arboretum and botanical park near Batsford in Gloucestershire, England… It is owned and run by the Batsford Foundation, a registered charity, and is open to the public daily throughout most of the year. The arboretum sits on the Cotswold scarp and contains around 2,900 trees, with a large collection of Japanese maples, magnolias and pines. It miantains the national collection of Prunus (sato-sakura group) – Japanese Flowering Cherry- under the National Plant Collection Scheme run by the National Council for the Conservation of Plants and Gardens (NCCPG).’

Source: Wikipedia