Karpatiosorbus subcuneata, the Somerset whitebeam, is a species of plant in the family Rosaceae. It is endemic to coastal north Devon and west Somerset in the United Kingdom. It is threatened by habitat loss.
Karpatiosorbus subcuneata is a small tree, reaching a height of . Its leaves are on average twice as long as broad. Fruits are distinctive – globose, reddish brown, and covered with silvery lenticels.[1]