Erodium texanum
Texas storksbill
Chihuahuan Desert
Sonoran lyre snake
Trimorphodon lambda
Sonoran Desert
fringe-toed lizard
Uma notata
tiger rattlesnake
Crotalus tigris
Mojave Desert
Mohave
Mojave
Coahuila
Mohave Desert
Lower California
Baja California Peninsula
hooded skunk
Mephitis macroura
Baja California
Painted Desert
Southwest
southwestern United States
valley pocket gopher
Thomomys bottae
Gila Desert
Chihuahua
mountain rice
Indian millet
silk grass
Plains
Middle America
Oryzopsis hymenoides
silkgrass
Micruroides euryxanthus
rosy boa
western coral snake
Lichanura trivirgata
Llano Estacado
longroot
pine-barren sandwort
Black Rock Desert
Arenaria caroliniana
NE
NM
Land of Enchantment
Neb.
N.M.
New Mexico
Cornhusker State
Nebraska
Equality State
Wyo.
Wyoming
WY
Great Basin
jungle
northwestern United States
Prairies
rock wren
Northwest
Salpinctes obsoletus
Guanajuato
southwestern
eastern coral snake
Sacramento Mountains
Micrurus fulvius
Guadalupe Mountains
Sierra Madre Occidental
scarlet musk flower
Nyctaginia capitata
Arizona
Grand Canyon State
AZ
Crotalus horridus horridus
timber rattlesnake
banded rattlesnake
quail brush
white thistle
Great Divide
quail bush
Continental Divide of the Americas
Atriplex lentiformis
aridic
quebrada
Carson
canyonland
western blind snake
desertscape
northeastern United States
Leptotyphlops humilis
Northeast
Crotalus lepidus
Ortilis vetula macalli
rock rattlesnake
genus Fouquieria
Fouquieria
Texas chachalaca