Sorbus alnifolia
Common name: 
Korean Mountain Ash
Alder Mountain Ash
SOR-bus al-ni-FO-li-a
Native to (or naturalized in) Oregon: 
  • Deciduous tree, usually 40-50 ft tall, 20-30 ft wide, may have a wider spread, pyramidal when young to nearly rounded when mature.  Leaves alternate, simple, ovate to elliptic-ovate, 5-10 cm long, with 6-10 pairs of veins, tip short acuminate, round at base, margin unequally serrate, glabrous (without hairs) above, glabrous or slightly pubescent below.  Flowers 1 cm across, usually 2 styles, 6-10 per loose cluster.  Fruit subglobose, 8 mm across, reddish pink to yellow when mature, may persist after leaf fall.
  • Sun to part shade
  • Hardy to USDA Zone 4      Native to central China, Korea and Japan.
Click image to enlarge
  • plant habit, summer

    plant habit, summer

  • leaves


  • leaves and developing fruit

    leaves and developing fruit

  • mature fruit and leaves

    mature fruit and leaves

  • plant habit, fall

    plant habit, fall

  • leaves and fruit, late fall

    leaves and fruit, late fall