Cane begonia's have large assemetrical angel wing shaped leaves that grow on long bamboo like stems. This relatively fast grower looks like someone painted white dots on it's rich oilve green leaves.  A large cluster of bright white flowers will appear on a single stem. Regular fertilizer every two weeks will encourage blooms during the summer months.  Place in bright indirect light and water regularly. Use well draining soil and do not let it sit in water as this will cause root rot or root fungus.