‘Orrin’ (C. mollissima) originated from an orchard belonging to Orrin Good of Lock Haven, PA, and was named by J.W. McKay in 1963. It probably originated from Peter Liu’s 1935 importations from seedlots with origin similar to ‘Kuling’, ‘Meiling’, and ’Nanking’. The tree has a very erect growth pattern. The nuts are quite small based on Missouri evaluations, although the tree is productive. They have a distinct dark mahogany color and a good flavor (Miller, 2003; Nave, 1998).