Asclepias asperula is found beyond the borderlands around the Southwestern United States and into Northern Mexico. My explanation of the common name antelope horns...
The San Pedro River in southeastern Arizona “provides critical stopover habitat for millions of migrating birds each year and is home to 84 species...
It was Carl Linnaeus, the king of binomial nomenclature, who decided to use the classical Latin name fraxinus as the genus for ash trees....