Tree Blog

Quercus douglasii | Stanford Dish

But beautiful old oaks can and do break. In this case, the tree had a bifurcated trunk, which split the load of the canopy in two. This is a notorious structural weakness in many trees, and eventually half will fall, after hundreds of years of apparent stability. Here you see the tree more than a decade after the structural failure, with the fallen half left in place to decay as habitat.

Dave Muffly