| ̷ ̷ ̷ ̷| ̷ ̷ ̷ ̷- noun
: a begonia with fibrous rather than rhizomatous or tuberous roots ; especially : any of numerous rather small bushy free-flowering begonias with white, pink, or red single or double flowers that have been developed in cultivation from a Brazilian wild plant ( Begonia semperflorens ) — compare rhizomatous begonia , tuberous begonia