Species in the genus Juglans:

Juglans mandshurica var. sieboldiana / Onigurumi

Juglans mandshurica var. sieboldiana / Onigurumi オニグルミ

Juglans mandshurica var. sieboldiana, a deciduous tree that grows to 7-10m in height, occurs in damp places like riversides or depressions. Leaves are of an imparipinnate compound lead, 40-60cm long, with dense brown vellus- and glandular- hairs on petioles and rhachises and 5-9 pairs of leaflets. The leaflets are 8-18cm long, 3-8cm wide, oblong, with few petioles, tips shortly pointed, bases somewhat distortedly truncated, and fine serrations on margins. These plants bloom simultaneously with the development of leaves. Dioecious: Female inflorescences are erect on the current year's branch tips, and male ones hang from the previous year's branch axils. Bloom time: May-June.