The two middle lobes are the largest with a short pointed base lobe with a rounded tip. The base lobe may be thicker than the others.
It is shiny, dark green, slightly rough with scattered hairs above. The underside of the leaf is grey-green with tiny star-shaped hairs. See right.
The leaves turn brown in the fall/autumn.
October 20, 2016
By Karol Holloway
Texas seeing widespread, sudden death of post oak trees (click here)
The yellow leaves of some post oak trees are not a sign of autumn. Instead, lamentably, they signal the tree's pending death.
Post oaks throughout the state, including North Texas, are sickening and dying, victims of erratic weather, arborists say.
The Texas A&M University AgriLife Extension Service started getting phone calls in the spring from concerned homeowners and arborists saying post oaks were "suddenly" dying, says Kevin Ong, director of the Texas Plant Disease Diagnostic Lab, operated by AgriLife
"When you get a whole bunch of folks asking the same question, and they are frmo all over Texas --- even the panhandle --- you know that something widespread is up,: he says....
