A and B plants

[ReneZ]

Apart from the language A vs. language B in the herbal pages (i.e. clearly different statistics on how characters combine), and the two different hands (hand 2 being more slanted and smaller, possibly among other things), there is a third difference.
This is that the text on Herbal-B pages is on average considerably longer, in terms of number of apparent words.
Typically, there are more words per line, and more lines of writing.

This *could* be a language-related issue (so we're back at two points).  It could also indicate a host of other things.