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Great Basin shrub steppe

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.

Range & origins

Great Basin shrub steppe location on world map
Marker placed inside the RESOLVE 2017 polygon at 39.5°N, 115.8°W.
Region through time
Modern footprint
RESOLVE 2017 maps 116,063 sq mi
This boundary is a modern ecological footprint for Great Basin shrub steppe, not a permanent line on the planet. It is useful for today's plant and wildlife context because it follows recurring vegetation, climate, landform, and disturbance patterns.
Why here
deserts & xeric shrublands conditions
The region sits in the Nearctic realm and is classed as deserts & xeric shrublands. Elevation, moisture, fire, soils, coasts, and human land use can all make the real landscape more varied than a single map color suggests.
Change pressure
Nature Could Reach Half Protected
Plotwright shows this as the current RESOLVE footprint. Over decades to centuries, warming, disturbance, invasive species, land use, and restoration can move the living edge of a region even when the reference map stays fixed.

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.
Climate-resilient · 2 plants
Bright shade foundation
A part-shade planting with shrub structure and low foliage contrast.
Annabelle hydrangea
Coral bells
+4
Climate-resilient · 8 plants
Climate-resilient natives for warming zones (eastern NA)
A pollinator-supporting palette of eastern North American natives with broad hardiness ranges and wide native distributions. Built for gardeners who want a planting that can handle warming zones without giving up wildlife value.
Switchgrass
Little bluestem
Common milkweed
Black-eyed Susan
Wild bergamot
Sweet Joe-Pye weed
Cutleaf coneflower
New England aster
+2
Climate-resilient · 6 plants
Mediterranean drought-tolerant edible
A low-water edible palette of culinary herbs + a hardy grape for hot dry sunny sites. Mediterranean-origin plants thrive on neglect; their primary failure mode is overwatering, not underwatering.
English lavender
Rosemary
Garden sage
Oregano
Common thyme
Fox grape
+5
Climate-resilient · 9 plants
Native pollinator border (eastern US)
A continuous-bloom native pollinator strip for eastern North America. Covers spring through frost with host + nectar plants spanning monarchs, native bees, hummingbirds, and specialist Lepidoptera. Little bluestem provides the matrix grass + Hesperiidae host.
Butterfly weed
Common milkweed
Purple coneflower
Wild bergamot
Scarlet bee balm
Little bluestem
Sweet Joe-Pye weed
Swamp sunflower
Smooth blue aster
Climate-resilient · 4 plants
Sunny pollinator border
A durable sunny border with summer bloom, seedheads, and upright winter texture.
English lavender
Purple coneflower
Black-eyed Susan
Switchgrass
Newly possible by 2070 · 3 plants
Kitchen patio planters
A compact edible collection for containers, patios, and near-door harvesting.
Genovese basil
Lacinato kale
Coral bells

Similar planting regions

Browse other regions with a similar hot, dry-summer rhythm. Their plant lists can suggest species and combinations worth comparing.
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 11a-13a
+2.7°F by 2070
30,014 sq mi
NNH tier 1
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 10b-13a
+3.0°F by 2070
22,915 sq mi
NNH tier 4
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 10a-13b
+3.0°F by 2070
194,134 sq mi
Editorial profile
NNH tier 2
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 7a-10b
+4.7°F by 2070
109,417 sq mi
NNH tier 2
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 11b-13a
+2.6°F by 2070
9,107 sq mi
NNH tier 1
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 10b-12b
+3.0°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).

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, June 14, from https://plotwright.garden/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
Backs 4 fields
RESOLVE id
Biome + realm
Area
NNH tier
USDA Plant Hardiness Zone Map
Published hardiness-zone authority
Backs 1 field
USDA zone range
One Earth
One Earth
Backs 1 field
Editorial summary