Begonia x hiemalis

Begonia x hiemalis

Begonia x hiemalis Fotsch.
Engl.: elatior begonia, winter-flowering begonia.
Deu.: Elatior-Begonie.
Suom.: pauliinabegonia.
Sven.: höstbegonia.
Span.: begonia elatior.
Bot. syn.: See Begonia socotrana Hook. f. x Begonia x tuberhybrida Voss., Begonia x elatior hort.

I have no articles for this botanical term, but there might be some for the next level down (if found).