Great Basin
timber rattlesnake
banded rattlesnake
Crotalus horridus horridus
Cornhusker State
NE
Neb.
Nebraska
Sonoran Desert
Trimorphodon lambda
Sonoran lyre snake
western coral snake
Pacific Northwest
Erodium texanum
rosy boa
Lichanura trivirgata
Texas storksbill
Micruroides euryxanthus
Equality State
WY
Wyo.
Blue Mountains
Wyoming
Llano Estacado
valley pocket gopher
American frontier
Wild West
Thomomys bottae
Cascade Range
Cascades
West
western United States
Cascade Mountains
Colorado
Wis.
Badger State
WI
Colo.
Wisc.
Wisconsin
Centennial State
CO
Chihuahuan Desert
aridic
Southwest
southwestern United States
Nev.
Silver State
NV
Sagebrush State
thirstland
Nevada
Battle Born State
rough green snake
Opheodrys aestivus
smooth green snake
Painted Desert
Opheodrys vernalis
Ill.
Prairie State
Carson
IL
cactus wren
northwestern
Land of Lincoln
Illinois
northwestern United States
Northwest
Sandhills
Mojave Desert
Mojave
Southeast
southeastern United States
Mohave Desert
Mohave
Plains
frontier
Middle America
Sturnella neglecta
western meadowlark
least shrew
Cryptotis parva
southwestern
Gila Desert
AZ
man-of-the-earth
pine-barren sandwort
Arenaria caroliniana
Arizona
longroot
Grand Canyon State
Ipomoea leptophylla
Fouquieria
Continental Divide of the Americas
Great Divide
genus Fouquieria
shortgrass
aridland