American Begonia Society
- Includes a collection of images and descriptions.
- http://www.begonias.org/

Begonia x erythrophylla
- Details of the species' parentage and a photo.
- http://hortiplex.gardenweb.com/plants/p1/gw1043653.html

Begonia rex
- Ratings of the species' scent, ease of cultivation and propagation, and flower and foliage quality, as well as a photo.
- http://hortiplex.gardenweb.com/plants/p1/gw1043664.html

Begonia fuchsioides
- Includes basic botanic information and an image of the species.
- http://hortiplex.gardenweb.com/plants/p1/gw1043654.html

Begonia suffruticosa
-
- http://florawww.eeb.uconn.edu/acc_num/199000053.html

Begonia strigillosa
-
- http://florawww.eeb.uconn.edu/acc_num/198500522.html

Begonia parva
-
- http://florawww.eeb.uconn.edu/acc_num/198500527.html

Begonia nelumbiifolia
-
- http://florawww.eeb.uconn.edu/acc_num/199000052.html

Begonia mannii
-
- http://florawww.eeb.uconn.edu/acc_num/198500529.html

Begonia incana
-
- http://florawww.eeb.uconn.edu/acc_num/198500194.html

Begonia hispida
-
- http://florawww.eeb.uconn.edu/acc_num/198500528.html

Begonia dichroa
-
- http://florawww.eeb.uconn.edu/acc_num/198500515.html

Begonia cubensis
-
- http://florawww.eeb.uconn.edu/acc_num/199100101.html