Japanese Walnut 

The Japanese walnut has very long leaves that are made up of many smaller, oval shaped, serrated, bright green leaflets. This tree produces an edible fruit which is sometimes also called a heartnut, due to its heart shape.

Family: Juglandaceae (Walnut)

Characteristics: The leaves are pinnately-compound, made up of 2 ½ - 7 inch long, ovate-oblong, serrated, bright green leaflets. Flowers appear as catkins. This tree produces a thick shelled, oval-shape fruit. The tree has a broad and rounded crown. It grows 40-65 feet high and wide.

Foliage: Deciduous (leaves lost seasonally)

Geographic Origin: Japan (non-native)

Cultivation Notes:  Does best in full sun. Prefers moist and well-drained soils.

  Number on Campus: 1

Source:  Oregon State University (https://landscapeplants.oregonstate.edu/plants/juglans-ailantifolia)


  • Japanese walnut leaves
  • Japanese walnut tree
  • Japanese walnut bark
  • Japanese Walnut fall color
  • Japanese Walnut fruit