-
gravelly volcanic soil on low hillside of rhyolitic tuff .
-
gravelly volcanic soil on low hillside of rhyolitic tuff .
-
-
-
-
-
-
-
Arizona, Santa Catalina Mountains, Molina Flats
-
Arizona, United States
-
Arizona, United States
-
Arizona, Santa Catalina Mountains, Molina Flats
-
Arizona, Santa Catalina Mountains, Molina Flats
-
-
-
-
-
-
-
-
-
-
-