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Juniperus occidentalis

Hook.

Western Juniper

G5Secure Found in 40 roadless areas NatureServe Explorer →
G5SecureGlobal Rank
Least concernIUCN
Identity
Unique IDELEMENT_GLOBAL.2.147316
Element CodePGCUP05092
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
IUCNLeast concern
Endemicendemic to a single nation
KingdomPlantae
PhylumConiferophyta
ClassPinopsida
OrderPinales
FamilyCupressaceae
GenusJuniperus
Synonyms
Juniperus occidentalis ssp. occidentalisJuniperus occidentalis var. occidentalis
Concept Reference
Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Taxonomic Comments
Research found that Juniperus occidentalis var. australis is more closely related to Juniperus osteosperma than to Juniperus occidentalis and led to the recognition of this taxon as a distinct species, named Juniperus grandis (Adams et al. 2006, Adams 2019). This record is for Juniperus occidentalis in the narrow sense, excluding material now segregated as Juniperus grandis.
Conservation Status
Review Date1999-05-18
Change Date1999-05-18
Ecology & Habitat
Other Nations (1)
United StatesN5
ProvinceRankNative
WashingtonSNRYes
IdahoSNRYes
OregonS5Yes
NevadaS3Yes
CaliforniaSNRYes
Plant Characteristics
Economic Value (Genus)No
Roadless Areas (40)
California (17)
AreaForestAcres
Callahan FlowKlamath National Forest3,231
Callahan FlowModoc National Forest6,618
Castle Crags AShasta-Trinity National Forest113
Castle Crags BShasta-Trinity National Forest1,619
Damon ButteModoc National Forest25,022
Dobie FlatModoc National Forest15,079
Hat Mtn.Modoc National Forest9,478
LavasModoc National Forest25,864
MayfieldLassen National Forest14,444
Mt. Shasta BShasta-Trinity National Forest2,809
Orleans Mtn.Klamath National Forest49,090
PepperdineModoc National Forest10
RussianKlamath National Forest21,771
SnoozerKlamath National Forest23,414
SoldierModoc National Forest10,102
Timbered CraterLassen National Forest4,096
Trail LakeLassen National Forest1,124
Idaho (1)
AreaForestAcres
HoodooNez Perce-Clearwater National Forest153,868
Oregon (20)
AreaForestAcres
Aldrich MountainMalheur National Forest4,925
Brattain ButteFremont National Forest5,959
Cottonwood CreekOchoco National Forest9,934
Crane MountainFremont National Forest23,096
Drake - McdowellFremont National Forest5,767
Flag CreekMalheur National Forest7,716
Lookout MountainOchoco National Forest14,115
Malheur RiverMalheur National Forest7,283
Mcclellan MountainMalheur National Forest21,213
Mt. JeffersonDeschutes National Forest2,282
Myrtle SilviesMalheur National Forest11,679
Nipple ButteMalheur National Forest11,354
North Fork MalheurMalheur National Forest18,069
Pine CreekMalheur National Forest5,462
Rock CreekOchoco National Forest11,396
SkookumUmatilla National Forest7,704
Sky Lakes AWinema National Forest3,940
South Fork - TowerUmatilla National Forest16,570
Texas ButteUmatilla National Forest6,871
Twin MountainWallowa-Whitman National Forest58,533
Washington (2)
AreaForestAcres
Upper TucannonUmatilla National Forest12,485
Wenatchee CreekUmatilla National Forest15,315
References (3)
  1. Adams, R.P. 2018. <i>Juniperus</i> of Canada and the United States: Taxonomy, Key and Distribution. Lundellia 21(1):1-34.
  2. Flora of North America Editorial Committee (FNA). 1993a. Flora of North America north of Mexico. Vol. 2. Pteridophytes and gymnosperms. Oxford Univ. Press, New York. xvi + 475 pp.
  3. Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.