Oak Tree Species ID & Ecology - UC Oaks
https://oaks.cnr.berkeley.edu/oak-tree-species-id-ecology/
Web ResultValley Oak. Oregon White Oak. Engelmann Oak. Coast Live Oak. Interior Live Oak. Canyon Live Oak. California Black Oak. Scientific name Quercus douglasii Hook. & Arn. Common names Blue, white, mountain, rock, iron, post, jack, Douglas. Height Usually 20-60 ft.; tallest over 90 ft. Mature Tree DBH (Diam. at Breast Ht.)
DA: 1 PA: 81 MOZ Rank: 85