Begonias - This is what comes to mind for Begonia, but the genus contains about 1,400 different plant species. The Begonias are from tropical climates - in Canada we use them as annuals in the outdoor garden.
Courtyard® Rosa rampicante 'Kolo'
Choose the Right Begonia for Your Garden
Begonias - Begonia Flowers for Containers and the Garden: Begonia ‘Nonstop Rose’