Juglans ailantifolia Juglans ailantifolia Juglans ailantifolia (synonyms "J. cordiformis" and "J. sieboldiana" and "J. mandshurica" var. "sachalinensis"), the Japanese walnut ( "oni-gurumi"), is a species of walnut native to Japan and Sakhalin. It is a deciduous tree growing to tall, rarely , and 40–80 cm stem diameter, with light grey bark. The leaves are pinnate, 50–90 cm long, with 11-17 leaflets, each leaflet 7–16 cm long and 3–5 cm broad. The whole leaf is downy-pubescent, and a somewhat brighter, yellower green than many other tree leaves. The male flowers are inconspicuous yellow-green catkins produced in spring at the same time as the
Tree of 40 Fruit Tree of 40 Fruit A Tree of 40 Fruit is one of a series of fruit trees created by the New York-based artist Sam Van Aken using the technique of grafting. Each tree produces forty types of stone fruit, of the genus "Prunus", ripening sequentially from July to October in the United States. Sam Van Aken is an Associate Professor of Sculpture at Syracuse University. His family is Pennsylvania Dutch, and he grew up on the family farm. In 2008, while looking for specimens to create a multicolored blossom tree as an art project, Van Aken acquired the orchard of