Sorbus americana Sorbus americana The tree species Sorbus americana is commonly known as the American mountain-ash. It is a deciduous perennial tree, native to eastern North America. The American mountain-ash and related species (most often the European mountain-ash, "Sorbus aucuparia") are also referred to as rowan trees. "Sorbus americana" is a relatively small tree, reaching in height. The American mountain-ash attains its largest specimens on the northern shores of Lake Huron and Lake Superior. It resembles the European mountain-ash, "Sorbus aucuparia". Native to eastern North America; The berries of American mountain-ash are eaten by numerous species of birds and small mammals, including
Sorbus reducta Garden Merit. Sorbus reducta Sorbus reducta (铺地花楸), the dwarf Chinese mountain ash, is a species of flowering plant in the family Rosaceae, native to western China (South West Sichuan and North West Yunnan}. Growing to tall by wide, it is a dense deciduous spreading shrub. Each leaf, long, has up to 15 leaflets which turn to brilliant shades of red in the autumn (fall). White flowers in spring are followed by red or pink, and then white berries in autumn. The Latin specific epithet "reducta" means "dwarf", referring to its compact habit. This plant has gained the Royal Horticultural Society's