Royal, a Barcelona x Daviana cross, was discovered in Stayton, Oregon, in 1930 by E. Roy.
The tree is vigorous and semi-erect.
Pollen shed is very early, flowering is mid-season.
Most nuts fall free of the husk.
Royal is susceptible to big bud mites (USDA, 2010).
Royal yields a medium to large nut with a thin shell.
Kernels are clean, elongated, and blanch moderately well.
Little is known about the performance of Royal in New Zealand.
It crops moderately well in the eastern Bay of Plenty.
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