Sorbus esserteauana Sorbus esserteauana Sorbus esserteauana, commonly known as Esserteau's rowan, is a species of rowan. It is a small tree, typically tall growing in mountain thickets and cliffs. It is an endemic species to China, being only found in western Sichuan. It has small white flowers and small red berries that are actually a pome fruit. Unlike all other species of "Sorbus", the fruit are hard and inedible to humans, but they are eaten by birds that scatter the seeds. It is cultivated as an ornamental plant in gardens and parks for its decorative fruit and because it attracts birds. When
Sorbus aucuparia at elevations of up to 2000 m. "S. aucuparia" appears north of the boreal forest at the arctic tree line; in Norway, it is found up to the 71st parallel north. It has naturalized in America from Washington to Alaska and eastward in Canada and the northeast of the US very successfully. "Sorbus aucuparia" is an undemanding species and can withstand shade. It is frost hardy and can tolerate winter dryness and a brief growing season. The plant is also resistant to air pollution, wind, and snow pressure. "S. aucuparia" mostly grows on soil that is moderately dry to moderately