Chihuahuan Desert
Mohave Desert
Mojave
Mohave
Mojave Desert
Erodium texanum
Texas storksbill
Trimorphodon lambda
Sonoran lyre snake
Painted Desert
Sonoran Desert
Gila Desert
Guadalupe Mountains
Black Rock Desert
rosy boa
Lichanura trivirgata
jungle
Crotalus tigris
tiger rattlesnake
White Sands
Southwest
desertscape
southwestern United States
Carson
Baja California Peninsula
hooded skunk
Mephitis macroura
Baja California
Lower California
Arizona ash
Big Bend
Fraxinus velutina
Sierra Madre Occidental
Sacramento Mountains
xerosphere
fringe-toed lizard
Leptotyphlops humilis
Uma notata
western blind snake
Big Bend National Park
Aridoamerica
coville
hediondilla
Great Arabian Desert
chuparosa
creosote bush
Arabian Desert
Larrea tridentata
Cascade Range
Crotalus lepidus
Cascade Mountains
rock rattlesnake
Texas chachalaca
Cascades
karoo
Ortilis vetula macalli
aridic
Guadalupe Mountains National Park
Centennial State
CO
Colorado
Colo.
Coahuila
sands
Neb.
semidesert
Middle America
Cornhusker State
NE
Nebraska
Great Basin
Colorado Desert
pedregal
migrant shrike
Guanajuato
La Silla
Lanius ludovicianus migrans
desert lily
desert sunflower
Death Valley
Gerea canescens
southwestern
banana yucca
brittlebush
Grand Canyon State
Arizona wild cotton
AZ
wild cotton
Gossypium thurberi
Arizona
Land of Enchantment
Euphorbia antisyphilitica
sierozem
candelilla
Fouquieria
genus Fouquieria