Begonia sp. Borneo White Spotted
A newer species to cultivation in the US. I have not seen plants that are a clear match to this sold by anyone else yet, but, there are similar ones that may be the same, or different clones of the same species. One has been labeled as paoana. Without flowers it is hard to say for sure. In any case, this is a beautiful species with white spotted leaves.
Available plants are well rooted in 2″ pots. They will be shipped potted. The last photo is representative of the size plant you will receive.