Common Crowfoot Rust on Redstem Filaree.
Tags: arizona,common crowfoot rust,coronado national forest,pima county,redstem filaree,rincon mountain wilderness,rincon mountains,santa catalina ranger district

Redstem Filaree in Grand Canyon National Park.
Tags: arizona,coconino county,grand canyon national park,grand canyon proposed or recommended wilderness area,redstem filaree