Juniperus occidentalis Hook.
Cupressaceae (Cypress Family)
Synonym(s): Juniperus californica var. siskiyouensis, Juniperus occidentalis var. occidentalis, Sabina occidentalis
USDA Symbol: juoc
Western juniper is a 15-50 ft., evergreen tree with a massive, squat trunk; large, wide-spreading branches; and reddish-brown, shreddy bark. Foliage is gray-green and berries are blue-black at maturity. Younger specimens are more trim and erect than their mature counterparts, with paler green foliage.
Western Juniper is common at high altitudes in the Sierra Nevada. Giants reach a trunk diameter of 16 (5 m) and an estimated age of more than 2000 years. This species may develop thick, long roots that entwine rock outcrops, mimicking the shape of the branches.
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Bloom InformationBloom Color: Yellow
Bloom Time: Apr , May
DistributionUSA: CA , ID , NV , OR , WA
Native Distribution: Mts. from c. & s.e. WA, to CA, s.e. ID & NV
Native Habitat: Dry slopes & flats from 3000-10,500 ft.
Growing ConditionsWater Use: Low
Light Requirement: Sun
Soil Moisture: Dry
CaCO3 Tolerance: High
Soil Description: Rocky soils.
Conditions Comments: Trees often grow from cracks in the solid granite of higher mts. and become picturesque specimens. In favorable conditions, trees may attain a diameter of 25 ft. and an estimated age of 3000 years.
Find Seed or Plants
Find seed sources for this species at the Native Seed Network.
View propagation protocol from Native Plants Network.
From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Native Seed Network - Corvallis, OR
Additional resourcesUSDA: Find Juniperus occidentalis in USDA Plants
FNA: Find Juniperus occidentalis in the Flora of North America (if available)
Google: Search Google for Juniperus occidentalis
MetadataRecord Modified: 2007-01-01
Research By: TWC Staff