Is the bark rough or smooth?
Rough bark
The bark is rough; nut is enclosed in a bladder-like sack; borne in clusters
OR
Smooth bark
the bark is thin, smooth and blue-gray colored; nut is connected to a 3-lobed bract in spike-like clusters?
The bark is rough; nut is enclosed in a bladder-like sack; borne in clusters
OR
the bark is thin, smooth and blue-gray colored; nut is connected to a 3-lobed bract in spike-like clusters?