ABSTRACT

This chapter provides information on uses, folk medicine, chemistry, germplasm, distribution, ecology, cultivation, harvesting, yields, energy, and biotic factors of California or Hind's Black Walnut. Kernels of nuts edible, of good quality, but small, used for confectioneries, pastries, and roasted or salted nuts. Wood hard, coarse-grained, dark-brown, often mottled, with pale thick sapwood. Often cultivated in California as street and shade tree. Reported from the North American Center of Diversity, Hind's black walnut, or cvs thereof, 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. Endangered or threatened species are not recommended as energy species. However, if abundant in cultivation, this species could serve as a high-priced oilseed and firewood, though the fruit and timber could find better uses. Trees are resistant to oak root fungus, but particularly susceptible to crown rot (Phytophthora cactorum).