Black walnuts

Black walnuts are native to the United States and are a terrific source of nutrients. The only problem is accessing those nutrients. Black walnut shells are one of the hardest organic substances known. They are used instead of sand to air blast metal, marble, and glass. The black walnut root stock is very hardy and walnut growers use the root stock and graft on the English walnut for propigation.
Suggested Use:
The extra full flavor of black walnuts adds a rich, meaty taste to cakes, salads, desserts, and savory prepared main dishes. The flavor is compatible with that of most foods and can be varied from their natural state to sweetened, salted, or spiced.

English walnuts