Begonia arachnoidea is a large limestone species from China. The leaf color of the species can vary considerably. This is one of the ones with a more green-is base color.
Like so many of these cliff/crevice dwelling species, care should be exercised to not overwater.
Offered here as husky young plants in 2 1/2" - 3" pots.
View Terrarium / Begonia Culture Sheet