Native to (or naturalized in) Oregon:
- Broadleaf deciduous tree, 60-80 ft (18-24 m) tall, crown first ovate then rounded, young shoots pubescent at first then glabrous. Leaves alternate, simple, variable, ovate to oblong-ovate, 10-18 cm long, tapered at base, usually about 7 lobes on each side, narrow sinuses may sometimes almost reach the midrib, dark green above, gray-green below, pubescent, short petiole, 5-10 mm long. Acorns grouped 2-5 together, 2-2.5 cm long, cup encloses a third or more.
- Sun. Withstands an arid environment when established.
- Hardy to USDA Zone 5b Native range from Italy to the Black Sea. The selection commonly available is Forest Green®
- frainetto: considered a typographical error, the author [Michele Tenore, 1780-1861] meant to use the southern Italian name franetto.
- Silverton, Oregon: The Oregon Garden
- Oregon State Univ. campus: in the campus parking lot on the southeast corner of Washington Ave. and 11th St.