Trees are distinguished by the fact they have a trunk, however small, and a branch system. The largest living organism in the world is a tree General Sherman, a giant redwood living in the US.
Malus 'Red Sentinel'
Crab apple
Tree
Hardy
White
Mid-green
4m x 6m (13ft x 20ft)
Deciduous tree grown for its lovely cup-shaped flowers and large clusters of deep red fruits that appear in autumn and remain on the branches throughout winter. Prefers full sun.