Oregon Ash

Oregon Ash Plant Information


Oregon Ash grows in the following 3 states:

Oregon, California, Washington

Fraxinus latifolia (Oregon ash) is a member of the ash genus Fraxinus, native to western North America.

Fraxinus latifolia is found on the west side of the Cascade Range from southwestern British Columbia south through western Washington, western Oregon, and northwestern California; and in central California in the Sierra Nevada.
Fraxinus latifolia can grow to 25m (80ft) in height, with a trunk diameter of 30-80cm (12-31in). The compound leaves are pinnate, 12-33cm (434-13in) long, with 5-9 leaflets, each leaflet ovate, 6-12cm (214-434in) long and 3-4cm (118-158in) broad, and often show signs of disease and brown rot, even on otherwise healthy plants. It is dioecious. The fruit is a samara, 3-5cm (118-2in) long including the wing.
The Oregon ash prefers damp, loose soils, and grows from sea level to 900 metres (3,000ft) in elevation, up to 1,700 metres (5,600ft) in the south of the range in California. In central Southern California, it intergrades with Fraxinus velutina (velvet ash) of southern California east into Arizona.

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