Oh I find it all very confusing, some of these sites contradict each other in descriptions, sigh..
If the Crug farm site is the most reliable then my plant definitely is Begonia grandis subsp.evansiana.
It doesn't has the silver spotting on the leaves like mentioned in the last link and does has deep red colouring on the backsides, even in seedlings, I might have to ask to move my plants back to where they were in the database
