The leaves are coming down from the oak trees, and you can see some of them had a tough time. This particular leaf has infestations from both the Oregon Oak Gall Wasp (big spherical growths) and the Silk Button Spangle Gall Wasp (little donuts).
Larkfarm Returns
Retired. SDAM and aphantasia mean that I've forgotten all the stuff you used to know about me. These days: Hiking, photography, house-husband, vegan, Linux, Oregonian.