Wood of the Paradox
It might naturally be supposed that the Paradox would produce a soft wood like that of most quick-growing trees. Such is not the case, however. The wood of the Paradox is as hard, almost, as that of the black walnut, and has the beautiful walnut grain shown in the photograph print above.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 2 Chapter 5