ABSTRACT
This chapter provides information on the uses, folk medicine, chemistry, germplasm, distribution, ecology, cultivation, harvesting, yields, energy, and biotic factors of California or Hind's Black Walnut. Kernels of nuts are edible, of good quality, but small, used for confectioneries, pastries, and roasted or salted nuts. Wood is hard, coarse-grained, dark-brown, often mottled, with pale thick sapwood. Reported from the North American Center of Diversity, Hind's black walnut is reported to tolerate high pH. In California, natural hybrids are known between this walnut and Juglans nigra; also a hybrid 'Paradoxa' has been produced artificially. Trees are used as stock for Persian walnut, top-worked high to provide butt logs for walnut timber. Valued mostly as a shade or street tree in California, and valued as stock on which to graft varieties of Persian walnut. Trees are resistant to oak root fungus, but particularly susceptible to crown rot.
