The community Alamorio, in Imperial County, California is partly named after a species of tree that is native to North America, Europe, and western Asia.
Alamorio is an unincorporated community in Imperial County, California. 
 The community resides along the Alamo River, and was named by combining the Spanish words "alamo" (meaning "poplar" or "cottonwood") and "rio" (meaning "river"). 
 Like some other species in the genus "Populus", they are commonly known as cottonwoods. 
