Native to (or naturalized in) Oregon:
- Broadleaf deciduous tree, 40-60 ft (12-18 m), rounded to open, spreading; grayish bark. Pith of stem uniformly chambered. Leaves alternate, pinnately compound, odd number of leaflets, usually 5, 7, or 9, each leaflet 5-15 cm long, terminal generally largest, progressively smaller toward petiole base. Fruit (nut) 4-5 cm diam., walnut of commerce. Terminal buds 2-3 times larger than lateral buds.
- Sun. Prefers a deep, dry, light loamy soil, does not do well in wet or poor soils.
- Hardy to USDA Zone 5(6) Native from southern Europe to the Himalayas and China. There a large number of selections (cultivars) of Juglans regia that are grown commercially throughout the world. Some cultivars can be grown in Oregon, including: 'Franquette', 'Chandler, 'Carpathian' and 'Hartley'. In the US, about 99% of all the commercial walnuts are produced in California.
- Juglans: classical Latin name for Juglans regia, from jovis, of Jupiter, and glans, acorn or nut. regia: royal
- Corvallis: on the north side of Orchard St., about 1/2 block east of 30th St.