Motagua Valley thornscrub
Motagua Valley thornscrub
The Motagua Valley thornscrub is a small ecoregion confined to the Motagua Valley of eastern Guatemala, in the Neotropic realm and the Deserts and Xeric Shrublands biome. Hemmed in by tall mountains, the Sierra de las Minas to the north and the Sierra del Merendon to the south, the valley floor is one of the driest places in Central America, with high temperatures and less than 500 millimeters of rain a year. Its vegetation is dominated by spiny, drought-adapted plants, including prickly-pear cacti of the genus Opuntia, acacias, and thorny shrubs of the legume family Fabaceae, while permanent watercourses support narrow strips of evergreen riparian forest. The valley is the only place in the world that harbors the critically endangered Motagua Valley beaded lizard (Heloderma charlesbogerti), and it shelters other threatened reptiles such as the Guatemalan spiny-tailed iguana along with 75 recorded bird species. With very little of its habitat protected, the ecoregion is being rapidly cleared by the spread of irrigation agriculture. For gardeners in hot, arid climates, the native Opuntia prickly pears grown here are familiar ornamental and edible succulents.
RESOLVE 605
Neotropic
902 sq mi
Deserts & Xeric Shrublands
Landscape type
Deserts & Xeric Shrublands
Plant region
Neotropic
Region footprint
902 sq mi
Habitat pressure
Nature Imperiled (Dinerstein NNH 4)
Source & care
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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 214 of 214 climate-fit plants for this region.
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: 13
Host/specialist links: 1
Forage/pollination links: 16
Shelter links: 0
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: 11
Host/specialist links: 1
Forage/pollination links: 14
Shelter links: 0
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: 8
Host/specialist links: 1
Forage/pollination links: 11
Shelter links: 0
Similar planting regions
Browse other regions in the same biome. Their plant lists can suggest species and combinations worth comparing.
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.
Countries
Educator packet
Region packet
Motagua Valley thornscrub educator packet
The Motagua Valley thornscrub is a small ecoregion confined to the Motagua Valley of eastern Guatemala, in the Neotropic realm and the Deserts and Xeric Shrublands biome. Hemmed in by tall mountains, the Sierra de las Minas to the north and the Sierra del Merendon to the south, the valley floor is one of the driest places in Central America, with high temperatures and less than 500 millimeters of rain a year. Its vegetation is dominated by spiny, drought-adapted plants, including prickly-pear cacti of the genus Opuntia, acacias, and thorny shrubs of the legume family Fabaceae, while permanent watercourses support narrow strips of evergreen riparian forest. The valley is the only place in the world that harbors the critically endangered Motagua Valley beaded lizard (Heloderma charlesbogerti), and it shelters other threatened reptiles such as the Guatemalan spiny-tailed iguana along with 75 recorded bird species. With very little of its habitat protected, the ecoregion is being rapidly cleared by the spread of irrigation agriculture. For gardeners in hot, arid climates, the native Opuntia prickly pears grown here are familiar ornamental and edible succulents.
Realm
Neotropic
Dominant biome
Deserts & Xeric Shrublands
Approximate area
902 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.). Motagua Valley thornscrub (Motagua Valley thornscrub). Retrieved 2026, August 20, from https://plotwright.com/regions/resolve-605
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





































