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Fraxinus latifolia Benth.
Oleaceae (Olive Family)
Synonym(s): Fraxinus oregona, Fraxinus pennsylvanica ssp. oregona
USDA Symbol: FRLA
USDA Native Status: L48 (N), CAN (N)
Oregon ash is a narrow-crowned, straight-trunked tree when grown in thickets, becoming more broad-crowned in the open. Growing 30-70 ft., this tree bears stout branchlets and light-green, pinnately compound, deciduous leaves. Fall color is a clear yellow.
Oregon Ash is the only ash native to the Northwest and the only western ash with commercially important wood; it is used for furniture, flooring, millwork, paneling, boxes, and fuel. It is also planted as a shade tree along the Pacific Coast. According to an old superstition in the Northwest, poisonous snakes are unknown where this ash grows, and rattlesnakes will not crawl over a branch or stick from the tree.
From the Image Gallery
Plant CharacteristicsDuration: Perennial
Leaf Retention: Deciduous
Size Notes: Up to about 70 feet tall.
Bloom InformationBloom Color: White , Yellow , Green , Brown
Bloom Time: Apr
DistributionUSA: CA , OR , WA
Native Distribution: W. base of Sierras from Kern to Modoc Cos., Coast Ranges from Santa Clara Co. to B.C.
Native Habitat: Moist canyon sites & stream banks below 5500 ft.
Growing ConditionsWater Use: Medium
Light Requirement: Sun
Soil Moisture: Moist , Wet
CaCO3 Tolerance: Low
Soil Description: Moist, rich, well-drained soils.
Conditions Comments: This tree is good for revegetating wet, lowland areas.
PropagationDescription: Seeds may be sown outdoors after collection or stored and stratified then sown in spring.
Seed Treatment: Stratify in moist sand or perlite for 30-60 days at 41 degrees.
Commercially Avail: yes
Find Seed or Plants
Find seed sources for this species at the Native Seed Network.
National Wetland Indicator Status
From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Santa Barbara Botanic Garden - Santa Barbara, CA
Native Seed Network - Corvallis, OR
Additional resourcesUSDA: Find Fraxinus latifolia in USDA Plants
FNA: Find Fraxinus latifolia in the Flora of North America (if available)
Google: Search Google for Fraxinus latifolia
MetadataRecord Modified: 2019-08-19
Research By: TWC Staff