Pretty sure this is Quercus lobata x virginiana which is an unnamed cross-sectional hybrid. Although sect. virentes is a close relative of sect. Quercus and other similar hybrids have been observed. Most famously Quercus x comptoniae.
Other observations of the same tree: https://www.inaturalist.org/observations/174290387, https://www.inaturalist.org/observations/239532263
Another nearby tree with similar features: https://www.inaturalist.org/observations/239532042
Algae on skull
Seedlings or fallen twigs i cant tell
Q. kelloggii during the northern lights
The extreme variability of Q. Kelloggii
i really need to go back to work
Young individual. Very interesting that the adaxial leaf surfaces were glaucus (as evidenced by my finger print!)
There are other observations of felty leaf Q. kelloggii although it is uncommon.
An unusual Q. kelloggii oak near Alta Sierra. I have seen this on iNaturalist one or twice. The last image is the same tree and lacks the dense pubesence but has scattered trichomes. I recall the typical leaf was on a tree branch while the unusual leaves were on a basal sprout..
Specimen courtesy of Espaço Talassa:
www.espacotalassa.com
Either C. kessleri or C. eschrichtii. Found in the genital area of Eschrichtius robustus
Quercus garryana semota with a blue tint
Bad photo, but the leaves were huge and super hairy
Weird hybrid oak? There were a bunch of these on this peninsula. They were Bushes up too about 6' tall, leaves were thick and the longest ones were just shy of two inches
On small shrub. Leaves are blue, wavy, sharp, and leathery with hairs on both sided. SQ3
On tree 6' tall 2" wide. Leaves are blue, wavy, sharp, and leathery with hairs on both sided. SQ2
Weirdly big leaves