Juglans "J. regia", "Juglans" x Paradox, are widely used as rootstocks for "J. regia" cultivars because of their resistance to Phytophthora and to a very limited degree, the oak root fungus. However, trees grafted on these rootstocks often succumb to black line. In some countries, immature nuts in their husks are preserved in vinegar. In the UK, these are called pickled walnuts and this is one of the major uses for fresh nuts from the small scale plantings. In Armenian cuisine, unripe walnuts, including husks, are preserved in sugar syrup and eaten whole. In Italy, liqueurs called Nocino and Nocello are
Exocarpos latifolius fruit is a globular nut on a short stalk. As it ripens the stalk swells and turns red, like an inside out cherry. The fruit is 4–6 mm long and is inedible, though the stalk is, and was used as a traditional food source by Aboriginal Australians. The seed is found on the outside of the fruit, hence the name exocarpus, from the Latin meaning "outer". The wood is very fine-grained with little figure but often striking colour variation and was historically used for cabinet work. The tree was used for many purposes by Aboriginal Australians.The bark was used as