Viola

• ABC Gardening Australia: Viola  - Provides information on the physical characteristics and cultivation. With photos.
• Australian National Botanic Gardens: Viola betonicifolia  - Contains information on the distinguishing characteristics and distribution of the group. Includes photos.
• Deck the House with Poinsettias, Plant a Freckle-Faced Viola  - Presents information on the study by Jim McCausland and Lauren Bonar Swezey.
• The Flower Expert: Violets (Viola)  - Presents information on the distinguishing characteristics, varieties and plant care. With photos.
• Garden Web: Viola in the West Virginia Mountains  - Presents information on the distinguishing characteristics of the group. Includes distribution and description on members pecies.
• MissouriPlants: Viola papilionacea Pursh - Rydberg  - Presents information on the distinguishing characteristics of the member specie. With photos.