Begonia is a genus of flowering plant within the Begoniaceae family. The genus includes approximately 1000 recognised species and over 10,000 cultivated varieties.
Most varieties fall under one of three large groups: fibrous-rooted (B. Maculata), rhizomatous (B. rex), or tuberous-rooted (Begonia x tuberhybrida). Tuberous begonias tend to be grown for their flowers as they show a wide variety of colours in their flowers, while fibrous and rhizomatous begonias tend to have all their detail in the leaves.
The majority of Begonias don't tolerate frost or harsh sun very well but prefer a shaded, humid but not overly wet environment.