Arbutus is a genus of the Ericaceae. The British have the evergreen strawberry tree, or Arbutus unedo, from southern Europe but naturalized in Ireland, and often cultivated in England.
Americans mostly know a quite different plant, the trailing or creeping arbutus, Epigaea repens of eastern North America, a creeping plant with fragrant pink or white flowers in early spring, followed by (usually) orange berries.
An American Arbutus, a small tree, is Arbutus Menziesia, or Madrona, with peeling white bark on cinnamon stems, mostly seen on the west coast. It is quite different from the European Arbutus.