Sankey's walnut is an evergreen canopy tree growing up to high, and the trunk may be
buttressed. The leaf bearing twigs are angular or fluted and covered in a fine indumentum. The leaves are dark green above and somewhat glaucous below with a
petiole up to long. They are
lanceolate to
elliptic to more or less
obovate, and measure up to . The much branched
inflorescences are produced in the leaf axils and carry dozens of very small, fragrant, golden-yellow flowers about wide. The fruit is a
globose to ellipsoidal blue
drupe, measuring up to and containing a single seed. ==Taxonomy==