Begonia U309is an unidentified species. It has been assigned unidentified species number U309. This plant was brought back from the Penang Botanic Garden in Malaysia in 1990. The leaves are very large on this rhizomatous begonia. It tolerates the heat well.
Care of Begonia U309: Shade to partial shade, temp. 45 to 95 degrees, 15 to 18 inches tall, allow getting slightly dry between waterings.