Hardy to USDA Zone 6 Native to western portions of Washington and Oregon and south in the Coast Range and Sierra Nevada to Central California. The only ash native to the Pacific Northwest. latifolia: with broad leaves; Oregon State Univ. campus: large tree on the north side of USDA Forage Seed Lab. on Campus Way, near 35th St.

The Oregon ash grows mostly in wet habitats and prefers damp, loose soils such as sloughs, swales, wet meadows, swamps, streams, and bottomlands. It grows from sea level to 900 m (3,000 ft) in elevation, up to 1,700 m (5,600 ft) in the south of the range in California.

Fraxinus latifolia Benth. (FRAKS-ih-nus lat-ih-FOAL-ee-uh) Names: Latifolia means “wide leaves.” Oregon Ash has wider leaflets than most Ashes. Relationships: There are about 65 species of Ashes, mostly in the temperate regions of the northern hemisphere. About …

Oregon ash, a member of the olive family (Oleaceae), is one of 16 species of ash in the United States. It is the only ash native to the Pacific Northwest. Mature Oregon ash attain heights of 60 to 80 ft and DBH of 16 to 30 in. Ash may live at least 250 years.

Native to western North America, Fraxinus latifolia (Oregon Ash) is a magnificent, large, deciduous tree with a straight trunk and a dense, narrow crown. The foliage of compound pinnate, light green leaves contains 5-9 leaflets, which turn clear yellow in the fall.

Oregon ash is found in wetlands, woodlands, canyons and streambanks. It can grow in a wide range of soil types including clay soils that are frequently flooded, sandy, gravelly and rocky soils with significant available moisture; particularly alluvial bottoms and flats.

About the Oregon Ash. This native tree does well in wet, low-lying areas. It tolerates seasonal flooding. Bright green compound leaves turn yellow in fall. It has attractive clusters of winged samaras (single seeds as opposed to a maple’s double samaras.) Grows 60-80 …

Dec 1, 1990 · Oregon ash (Fraxinus latifolia) is the only native species of Fraxinus in the Pacific Northwest. It is commonly found in riparian habitats and is not managed for timber production. This tree may reach the age of 250 years and is fast …

Fraxinus latifolia Benth. Oregon Ash. Oleaceae -- Olive family. Peyton W. Owston. Oregon ash (Fraxinus latifolia) is the only native species of Fraxinus in the Pacific Northwest. It is commonly found in riparian habitats and is not managed for timber production.

Fraxinus latifolia is a tree that is native to California, and also found elsewhere in western North America.