Tree Blog

Quercus polymorpha x alba | Central Valley

Here we see another of the Monterey Oak (Q. polymorpha) hybrids, this time showing purple coloration in the middle of the winter, much later than some of its siblings we've looked at previously. All the sibling show some form of late fall to mid winter coloration, as might be expected of offspring of a semi-evergreen oak and a deciduous oak. The winter coloration here again shows red pigments, and again is suggestive of a red fall color paternal parent. Currently the best guess is that the paternal parent is White Oak (Q. alba), native to roughly the eastern half of the United States.

Dave Muffly