Rocky Mountain Juniper - Juniperus scopulorum
(see State Rank Reason below)
MNPS Threat Rank
State Rank Reason (see State Rank above)
See rank details
- Details on Status Ranking and Review
Score0 - Large: Generally >100,000 individuals.
Score0 - Widespread species within Montana (occurs in 5% or more of the state or generally occurring in 6 or more sub-basins.) as well as outside of Montana.
Area of Occupancy
Score0 - High: Occurs in >25 Subwatersheds (6th Code HUC’s).
Score0 - Low: Species is a generalist that occurs in a variety of habitats and/or is tolerant of disturbed or degraded habitats (C -Values of 1-4).
Score0 - Stable or Increasing: Population size, range, and/or available habitat stable, increasing or fluctuating in the recent past (approximately 30 years).
Score0 - Low: Impacts, if any, to the species are expected to be minor or insignificant (affecting <10% of populations) in severity, scope and immediacy.
Score0 - Low Vulnerability: Species does not have any unusual or specific life history or biological attributes or limted reproductive potential which makes it susceptible to extirpation from stochastic events or other adverse impacts to its habitat and thus slow to recover.
Raw Conservation Status Score
0 total points scored out of a possible 19.
Erect shrub or small tree up to ca. 6 m with ascending branches and a conical crown. Bark stringy, reddish-brown. Leaves green but often with a whitish, glaucous coat, opposite, scale-like, appressed, 1–2 mm long, entire-margined with an acute but not apiculate tip; juvenile leaves needle-like, 2–6 mm long and ascending. Seed cones with 1 to 2 seeds, blue with glaucous bloom, 3–6 mm long, maturing in 2 years (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
Across most of MT; BC and AB south to NV, AZ, and NM (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Observations in Montana Natural Heritage Program Database
Number of Observations:
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Map Help and Descriptions
(Observations spanning multiple months or years are excluded from time charts)
Stream terraces, open Douglas-fir or ponderosa pine forest, and rocky or barren slopes; plains, valleys to montane (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
- Additional ReferencesLegend: View Online Publication
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- Lesica, P., M. T. Lavin, and P. F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
- Little, E.L., Jr. 1979. Checklist of United States trees (native and naturalized). Agriculture Handbook No. 541. U.S. Forest Service, Washington, D.C. 375 pp.