This lovely Begonia has tiny leaves and a pretty ruby stem.  It can likely get to around 10″ but it is very slow.  The leaves stay around 1/4-1/2 inch long.  This particular clone is from the Crystal Mountains in Gabon.  The leaves are nicely serrated and the leaf edges have a very subtle pink lining to them.  It is a hardy Begonia, but is slow to acclimate, and even when acclimated, a slow grower.

The last photo is representative of the plants available. They are well rooted and shipped meticulously in their pots.