Begonia ningmingensis is a showy & relatively "new" species, described as being from China. There are many variations in the species - this form bears uniformly brown-green foliage with just lighter veination.
Like so many of these cliff/crevice dwelling species, care should be exercised to not overwater.
Offered here as husky plants in 2 1/2 - 3" pots.
View Terrarium / Begonia Culture Sheet