Native to (or naturalized in) Oregon:
- Broadleaf deciduous tree, 40-60(75) ft [12-18(23) m] tall and 30-40(60) ft [9-12(18) m] wide, pyramidal in youth, oval-round at maturity. Leaves alternate, simple, ovate-oblong, 5-13 cm long, sharply and doubly serrate, veins straight, impressed above [10(12)-14(18) pairs], dark green in summer, yellowish in fall. Male and female flowers in separate clusters (catkins) on the same tree, male catkins yellowish, 3 cm long, female catkins greenish, to 5cm. Female flowers have conspicuous 3-lobed green bracts, which mature to yellow-brown in fall. Fruit is a small, 6 mm, ribbed nutlet at the base of each wing-like brownish bract.
- Best in full sun, tolerates light shade. Tolerates a wide range of soil conditions, but prefers well-drained soil. No serious pests or diseases.
- Hardy to USDA Zone 4 Native to Europe, Asia Minor, southeast England
- There are a number of selections, including Emerald Avenue®, released in 2011, and the very common 'Fastigiata'.
- Corvallis: east side of St. Mary's Catholic Church on 23rd St. between Tyler and Polk.