Page authors: Don Knoke, David Giblin
Juniperus scopulorum
Rocky Mountain juniper, seaside juniper, Rocky Mountain redcedar

Distribution: Occurring west of the Cascades crest in Washington; southwest British Columbia to Oregon, east to Nebraska.

Habitat: Coastal islands to inland valleys and lower mountains.

Cones: May-June

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern


Dioecious, usually a rounded to columnar tree up to 10 m. tall, but sometimes a sprawling shrub only 1 m. tall.


Bark reddish-brown, becoming scaly or fibrous and stringy.


Leaves opposite, scale-like, usually with an inconspicuous gland on the leaf surface; juvenile leaves needle-like, 5-7 mm. long, often persistent until tree is nearly mature.


Staminate cones ovoid, 3-5 mm. long, with 12-16 stamens; ovulate cones berry-like, bluish-purple and glaucous, 5-6 mm. long, 1- to 2-seeded.

Accepted Name:
Juniperus scopulorum Sarg.
Publication: Gard. & Forest. 10: 420, fig. 54. 1897.

Synonyms & Misapplications:
Juniperus maritima R.P. Adams
Juniperus scopulorum Sarg. ssp. patens
Juniperus virginiana L. ssp. montana Vasey [IMF1]
Juniperus virginiana L. ssp. scopulorum (Sarg.) A.E. Murray [IMF1]
Additional Resources:

PNW Herbaria: Specimen records of Juniperus scopulorum in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Juniperus scopulorum checklist entry.

E-Flora BC: Juniperus scopulorum atlas page.

CalPhotos: Juniperus scopulorum photos.

USDA Plants: Juniperus scopulorum information.

55 photographs:
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