[Wildflowers with Four Petals in the Desert Southwest of the United States]

The Evening-primrose Family in the Southwestern Deserts of the United States

Onagraceae

 

 


Evening-primroses, Sun Cups and Yellow Cups: The Genus Camissonia (updated to the genera Chylismia and Eremothera)

Sun Cups: The Genus Camissoniopsis

Evening-primroses: The Genus Oenothera

 


Paul Slichter Mail