Juglans ailantifolia as a material for snow tires (studless tires). The only significant disease Japanese walnuts are susceptible to is the Walnut Bunch Disease. 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 rosella eucalypts—forming the bulk of its diet; other items eaten include the seed of the soft tree fern ("Dicksonia antarctica"), cranberry heath ("Astroloma humifusum"), myrtle beech ("Lophozonia cunninghamii"), Australian blackwood ("Acacia melanoxylon"), silver wattle ("Acacia dealbata") and buttercups ("Ranunculus"), berries, nuts and fruit, as well as flowers and new buds of southern sassafras ("Atherosperma moschatum"), mānuka ("Leptospermum scoparium"), shining tea-tree ("Leptospermum nitidum"), swamp honey-myrtle ("Melaleuca squamea"), Tasmanian bluegum ("Eucalyptus globulus"), Smithton peppermint ("Eucalyptus nitida"), messmate stringybark ("Eucalyptus obliqua"), snow gum ("Eucalyptus pauciflora"), manna gum ("Eucalyptus viminalis"), small-fruit hakea ("Hakea microcarpa") and native plum ("Cenarrhenes nitida"). The green rosella has at times