Home/Species/ Arizonia Juniper

Juniperus arizonica

(R.P. Adams) R.P. Adams

Arizonia Juniper

G5Secure Found in 17 roadless areas NatureServe Explorer →

G5SecureGlobal Rank

Least concernIUCN

UnknownThreat Impact

Identity

Unique IDELEMENT_GLOBAL.2.1099435

Element CodePGCUP050K0

Record TypeSPECIES

ClassificationSpecies

Classification StatusStandard

Name CategoryVascular Plant

IUCNLeast concern

Endemicoccurs (regularly, as a native taxon) in multiple nations

KingdomPlantae

PhylumConiferophyta

ClassPinopsida

OrderPinales

FamilyCupressaceae

GenusJuniperus

Synonyms

Juniperus coahuilensis var. arizonicaR.P. Adams

Concept Reference

Adams, R., S. Nguyen, J. Morris, and A. Schwarzbach. 2006. Re-examination of the taxonomy of the one-seeded, serrate leaf Juniperus of southwestern United States and northern Mexico (Cupressaceae). Phytologia 88(3): 299-309.

Taxonomic Comments

This taxon was first described as a variety of Juniperus coahuilensis that occurs in New Mexico and Arizona but it was later elevated to a species (Adams 2006, 2018).

Conservation Status

Rank Method Rank calculation - Biotics v2

Review Date2023-12-19

Change Date2023-12-19

Edition Date2023-12-15

Edition AuthorsEberly (2023)

Threat ImpactUnknown

Range Extent200,000-2,500,000 square km (about 80,000-1,000,000 square miles)

Number of Occurrences> 300

Rank Reasons

Juniperus arizonica is a evergreen shrub or small tree that has a regional distribution, but it is common (over 300 occurrences) and plants are abundant and even weedy within it's range. Trends are suspected to be stable. Threats are not well documented.

Range Extent Comments

Juniperus arizonica occurs in northeastern Sonora, Mexico, and southwestern New Mexico, trans-Pecos Texas, and south of the Mogollon Rim in Arizona in the western U.S.A. (Adams 2006, 2008b, 2018). Range extent was estimated using herbarium specimens collected between 1983 and 2023 (GBIF 2023, SEINet 2023).

Occurrences Comments

By applying a 1 km separation distance to locations documented between 1983 and 2023, it is estimated that there are over 300 occurrences rangewide (GBIF 2023, SEINet 2023).

Ecology & Habitat

Habitat

Juniperus arizonica grows in Bouteloua grasslands and nearby rocky slopes at elevations of 980 to 1,600 m.

Ecology

This species can resprout from stumps (Adams 2018).

Terrestrial Habitats

Grassland/herbaceousDesert

Other Nations (1)

United StatesN5

Province	Rank	Native
New Mexico	SNR	Yes
Arizona	SNR	Yes
Texas	SNR	Yes

Plant Characteristics

DurationPERENNIAL, EVERGREEN

Economic Value (Genus)No

Roadless Areas (17)

Arizona (16)

Area	Forest	Acres
Arnold Mesa	Prescott National Forest	12,286
Black Canyon	Prescott National Forest	10,683
Boulder	Tonto National Forest	40,359
Boulder Canyon	Coconino National Forest	4,554
Hackberry	Coconino National Forest	17,885
Happy Valley	Coronado National Forest	7,972
Hellsgate	Tonto National Forest	6,171
Horse Mesa	Tonto National Forest	9,146
Lime Creek	Tonto National Forest	42,568
Lower San Francisco	Apache-Sitgreaves National Forests	59,310
Mazatzal	Tonto National Forest	16,942
Santa Teresa	Coronado National Forest	8,929
Sierra Ancha Wilderness Contiguous	Tonto National Forest	7,787
Sunset	Apache-Sitgreaves National Forests	28,948
Upper Dragoon Roadless	Coronado National Forest	2,533
Upper Rincon Roadless	Coronado National Forest	2,991

New Mexico (1)

Area	Forest	Acres
Peloncillo (NM)	Coronado National Forest	43,339

References (3)

Adams, R. 2008b. The taxonomy of Juniperus of Canada and the United States is reviewed and keys to the taxa are presented as well as distribution maps. Phytologia 90(3): 255-314.
Adams, R.P. 2018. Juniperus of Canada and the United States: Taxonomy, Key and Distribution. Lundellia 21(1):1-34.
Adams, R., S. Nguyen, J. Morris, and A. Schwarzbach. 2006. Re-examination of the taxonomy of the one-seeded, serrate leaf Juniperus of southwestern United States and northern Mexico (Cupressaceae). Phytologia 88(3): 299-309.