Juglans californica shell that is difficult to remove. The Chumash Indians of the Channel Islands of California and Ventura County eat the nuts; however, they are not grown commercially for this purpose. "Juglans californica" is cultivated throughout California to support the walnut industry, used as a rootstock in English walnut orchards. It is also cultivated as an ornamental tree where it is planted in California native plant, xeriscape, and wildlife habitat gardens and natural landscaping in California, and in Hawaii. Some authorities (e.g. the California Native Plant Society) combine this species with "J. hindsii". On the other hand, a 2007 molecular analysis
Buff-sided robin binominal name translates as stag-bellied dappled tree-nymph. The generic name "Poecilodryas" (= spotted or dappled wood-nymph) refers to the spots on the wing and tail of species in this genus and its characteristic flight and perching behaviour. The specific name "cerviniventris" refers to the buff colouration of the chest, derived from "cervus" = stag or deer and "ventris" = vent or belly. The buff-sided robin is a medium to large sized robin species, with body length ranging from . Adult buff-sided robins are not sexually dimorphic and the sexes cannot be differentiated on the basis of plumage. However males are