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Great Basin shrub steppe
Biome
Deserts & Xeric Shrublands
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Biogeographic realm
Nearctic

Great Basin shrub steppe

Great Basin shrub steppe
The Great Basin shrub steppe spans most of Nevada and much of Utah, with adjoining areas of California and Idaho, bounded by the Sierra Nevada to the west and the Wasatch Mountains to the east. Its landscape is a series of uplifted fault-block mountains separated by intervening basins, vegetated by big sagebrush along with bluebunch wheatgrass, Idaho fescue, and pinyon-juniper woodlands. The climate is extreme and arid: less than 250 mm of annual precipitation, with recorded temperatures at Elko, Nevada ranging from -42°C to +42°C. Roughly 100 internally drained basins hold remnant Pleistocene lakes such as Great Salt Lake and Pyramid Lake. Invasive cheatgrass and the unnaturally frequent fires it fuels are a leading conservation threat.
RESOLVE 430
Nearctic
116,063 sq mi
Deserts & Xeric Shrublands
Landscape type
Deserts & Xeric Shrublands
Plant region
Nearctic
Region footprint
116,063 sq mi
Habitat pressure
Nature Could Reach Half Protected (Dinerstein NNH 2)
Use this as the broad planting pattern for the region: Arid and semi-arid lands where low, erratic rainfall and high evaporation limit vegetation to drought-adapted shrubs, succulents, and sparse grasses. Day-to-night temperature swings are large, and life is finely tuned to water scarcity. For garden decisions, pair that context with the plant list below, then narrow by your site's light, water, soil, and mature-size constraints.

Plants that can handle this region

A climate-fit shortlist from Plotwright's catalog. Start with the reliable fits, then use each plant page to check light, water, soil, mature size, and local availability.
Showing 410 of 410 climate-fit plants for this region.
Reliable climate fits
Good bets for now and later
375 plants
These plants fit the region today and stay within range under the mid-century projection. Start here when you want choices with the least climate regret.
Good now, not later
Good now, less certain later
5 plants
These plants fit the region as it is today. The projection moves them outside their listed range, so treat them as shorter-horizon or higher-care choices.
Subalpine firs with very narrow steeple crowns scattered across a green subalpine meadow, with lingering snowfields, bare rock and a cloud-covered peak behind them.
Abies lasiocarpa
Subalpine fir
Subalpine fir (Abies lasiocarpa) is the narrowest conifer in western North America and, for most gardens, the wrong tree. It is a timberline species: the US Forest Service silvical account puts its climate at a mean July temperature of 45 to 60°F, with more than 24 inches of precipitation of which much falls as snow, on ground that is frozen or under snow for a large part of the year. Bring it down the mountain into a hot summer, a humid one, or a polluted one and it sulks, thins and dies, and it does so slowly enough that people keep watering it. The Lady Bird Johnson Wildflower Center calls it a spire-like evergreen of 30 to 50 feet with stiff horizontal limbs branched to the ground, and that spire is the whole ornamental argument - a crown so narrow it can be a fifth as wide as it is tall, which is a snow-shedding adaptation rather than a nursery selection. At and above treeline it stops being a tree at all and grows as krummholz, low sprawling mats scoured by wind, and reproduces by LAYERING: a branch pressed into the ground roots and becomes a new stem, so a single tree can leave behind a ring of clones that mountaineers call an atoll. Two honest problems follow it down into cultivation. It is slow and, for a conifer, short-lived and structurally weak - thin bark, persistent dead branches, easily windthrown - and its pest list is serious: balsam woolly adelgid (Adelges piceae), introduced from Europe and the most destructive insect on this species in the Cascades, and the western balsam bark beetle (Dryocoetes confusus), which together with Armillaria root rot drives the mortality complex that has killed subalpine fir across large areas of the Rockies. Like every true fir it carries its cones UPRIGHT on the upper branches, dark purple ripening brown, and those cones never fall whole - they shatter on the tree and leave a bare central spike standing on the branch, which is the single quickest way to tell an Abies from a Picea at a glance.
Tree
Full sun / Part shade
Moderate water
Zones 3a-6b
Climate: moderate
Structure
Focal point
Future climate matches
Likely better as winters warm
30 plants
These plants are not the best current fit, but the mid-century projection moves this region toward their comfort range.

Planting collections

Finished planting recipes where every member can handle this region's climate range. The fit badge uses the collection's most sensitive plant, so a resilient collection is a safer starting point than any single standout.

Starter kits for this region

Generated from catalog plants that already pass this region's climate fit gate, with native matches sorted first when the catalog has enough coverage.
Sunny pollinator border
A sunny, wildlife-forward planting assembled from plants that pass this region fit gate.
Native fit: 0/6
Climate resilient: 6/6
Wildlife links: 15
Host/specialist links: 4
Forage/pollination links: 21
Shelter links: 0
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Shade-edge planting
A softer edge kit for woodland margins, porches, and mixed-light garden edges.
Native fit: 0/6
Climate resilient: 6/6
Wildlife links: 15
Host/specialist links: 4
Forage/pollination links: 21
Shelter links: 0
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Resilient shrub layer
A woody structure layer led by plants that fit both current and projected regional conditions.
Native fit: 0/6
Climate resilient: 6/6
Wildlife links: 16
Host/specialist links: 7
Forage/pollination links: 19
Shelter links: 0
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Similar planting regions

Browse other regions in the same biome. Their plant lists can suggest species and combinations worth comparing.
Baja California desert scrub with columnar cacti and granite boulders.
RESOLVE 426 - Nearctic
Baja California desert
The Baja California desert spans the western Baja California Peninsula in Mexico, across both Baja California and Baja California Sur states, bounded by the Pacific to the west and the Peninsular Ranges to the east. Its xeric shrublands hold close to 500 vascular plant species, including the endemic boojum tree (Fouquieria columnaris), creosote bush, and many cacti, with roughly 23% of plant species endemic. The climate is dry and mostly subtropical; the Pacific Ocean adds humidity and moderates temperatures, while the driest interior areas receive less than 50 mm of rain a year. About 60% of the ecoregion lies in protected areas, including Mexico's El Vizcaíno Biosphere Reserve.
Deserts & Xeric Shrublands
Zones 9a-11a
+2.4°F by 2070
30,014 sq mi
NNH tier 1
Rocky slope with shrubs and dry grassland in the Central Mexican matorral.
RESOLVE 427 - Nearctic
Central Mexican matorral
The Central Mexican matorral is a semi-arid shrubland ecoregion of roughly 59,400 sq km on the southern Mexican Plateau, encompassing the Valley of Mexico and Mexico City, North America's largest metropolis. This relatively flat desert reaches elevations up to about 2,000 m and is ringed and dotted by mountain ranges. Its climate is subtropical and semi-arid, with warm summers, occasional summer rains, and cool winters; average annual precipitation is under 500 mm. The characteristic vegetation is dry matorral dominated by cacti, agaves, and shrubs such as lechuguilla and acacias, with the golden barrel cactus (Echinocactus grusonii) as a flagship species. Geographic isolation drives exceptionally high endemism, but the ecoregion is classified critical/endangered, with little protected habitat and pressure from agriculture, grazing, urban growth, and illegal cactus collection.
Deserts & Xeric Shrublands
Zones 9a-10a
+2.0°F by 2070
22,915 sq mi
NNH tier 4
Chihuahuan Desert shrubland and rocky mountain backdrop in Big Bend National Park.
RESOLVE 428 - Nearctic
Chihuahuan desert
The Chihuahuan desert - the largest North American desert, covering western Texas, southern New Mexico, southeastern Arizona, and substantial portions of the Mexican states of Chihuahua, Coahuila, Durango, and Zacatecas. Higher and cooler than the Sonoran; summer monsoonal rainfall supports the largest cacti diversity in North America (~350 species), with creosote bush, lechuguilla, sotol, and Yucca matrix species. Big Bend National Park covers a famous US portion.
Deserts & Xeric Shrublands
Zones 7b-9b
+2.5°F by 2070
194,134 sq mi
Editorial profile
NNH tier 2
Utah juniper and bunchgrass on slickrock below the span of Landscape Arch, Arches National Park, Utah.
RESOLVE 429 - Nearctic
Colorado Plateau shrublands
The Colorado Plateau shrublands stretch across the high desert country of Utah, Colorado, Arizona, and New Mexico, an elevated, northward-tilted saucer largely above 1,525 meters and ringed by higher mountains. Pinyon-juniper woodlands dominate, grading into big sagebrush and semi-desert shrubland at lower elevations and ponderosa pine forest higher up. The climate is arid to semiarid, with cold winters and hot summer days. Carved by the Colorado River and its tributaries, the region holds iconic landscapes such as the Grand Canyon and roughly 300 endemic plant species, yet only about 11% is protected.
Deserts & Xeric Shrublands
Zones 5a-8a
+5.4°F by 2070
109,417 sq mi
NNH tier 2
Highway running down through sparse desert scrub to the Sea of Cortez, Baja California, Mexico.
RESOLVE 431 - Nearctic
Gulf of California xeric scrub
The Gulf of California xeric scrub runs down the eastern side of Mexico's Baja California Peninsula along the Gulf of California, from the gulf shore up to the crest of the Sierra de la Giganta and across several gulf islands, covering roughly 23,600 km2. It is a dry, low-mountain landscape (mostly 200-1,000 m) of desert shrubland dominated by creosote bush, white bursage, and ironwood. The climate is arid and subtropical, with some of the lowest precipitation in all of Mexico (under 100 mm). Distinctively, much of the region's biodiversity and high endemism is tied not to the open scrub but to scattered palm oases; roughly half the ecoregion lies within protected areas.
Deserts & Xeric Shrublands
Zones 10a-12a
+2.4°F by 2070
9,107 sq mi
NNH tier 1
Yuccas scattered through grey-green scrub on the Mexican Meseta Central.
RESOLVE 432 - Nearctic
Meseta Central matorral
The Meseta Central matorral is an arid lowland plain across the central Mexican Plateau, spanning states including Zacatecas, San Luis Potosí, Coahuila, Durango, and Nuevo León between the Sierra Madre ranges and south of the Chihuahuan Desert. Its xeric shrublands are dominated by yuccas, creosote bush, mesquite, and cacti, over terrain ranging from desert plains to hills and mountains near 2,400 m. The climate is arid subtropical, with annual rainfall below 500 mm. Isolation by the surrounding mountains drove notable endemism, including roughly 16 endemic woody plant genera, yet protected areas cover only about 2% of the ecoregion.
Deserts & Xeric Shrublands
Zones 9a-10b
+1.8°F by 2070
48,362 sq mi
NNH tier 4

National refinement sub-regions

Within this RESOLVE ecoregion, national agencies recognise finer-grained sub-regions. Plotwright assigns each sub-region polygon to its containing RESOLVE polygon by centroid.
EPA Level III (US-only) - 1 sub-region
13 · Central Basin and Range
Source: USGS / EPA via Omernik (1987).

Where this ecoregion reaches

The countries, US states, and Canadian provinces this ecoregion touches, from a spatial join of its RESOLVE polygon against Natural Earth boundaries.
States and provinces

Educator packet

Region packet
Great Basin shrub steppe educator packet
The Great Basin shrub steppe spans most of Nevada and much of Utah, with adjoining areas of California and Idaho, bounded by the Sierra Nevada to the west and the Wasatch Mountains to the east. Its landscape is a series of uplifted fault-block mountains separated by intervening basins, vegetated by big sagebrush along with bluebunch wheatgrass, Idaho fescue, and pinyon-juniper woodlands. The climate is extreme and arid: less than 250 mm of annual precipitation, with recorded temperatures at Elko, Nevada ranging from -42°C to +42°C. Roughly 100 internally drained basins hold remnant Pleistocene lakes such as Great Salt Lake and Pyramid Lake. Invasive cheatgrass and the unnaturally frequent fires it fuels are a leading conservation threat.
Realm
Nearctic
Dominant biome
Deserts & Xeric Shrublands
Approximate area
116,063 square miles
States / provinces
Not recorded
Climate descriptor
Not recorded
Classroom prompts
- Which climate and biome facts explain why this region supports its characteristic plants?
- How do native-plant and wildlife-support claims differ from a species-presence claim?
- Which source-backed facts would you cite before using this region in a classroom map activity?
Use the Sources & citations section below for page citation styles and region source links.

Sources & citations

Cite this page
For lesson plans, articles, or regional planting notes that use this Plotwright page. To cite the underlying ecoregion framework or a specific editorial profile, use the source cards below.
Plotwright. (n.d.). Great Basin shrub steppe (Great Basin shrub steppe). Retrieved 2026, August 20, from https://plotwright.com/regions/resolve-430
Sources for this region
This page cites Plotwright first for the compiled view, then lists the upstream framework, climate, and editorial source pages so readers can cite the original material directly.
RESOLVE 2017 Terrestrial Ecoregions (Dinerstein et al.)
Primary ecoregion framework
USDA Plant Hardiness Zone Map
Published hardiness-zone authority
One Earth
One Earth