And another incoming message, this time from Peter Ole Kvint:
I would guess that the text is Berber. Berbers have had several writing systems but none of them to be suitable for writing with quill and ink.
When you consider how cookbooks copied today, then herbal books from middelaldren be copied copy. If you have a list of herbs from a book then most could be found in the illustrations. Or the options limited.
Since the patterns seen in other books, so it must be possible to retrieve the same recipes. And thus rediscover plant names.
Note that on some artwork, the plants are cut and put back together on the thicker root. These plants may be large, perhaps trees and shrubs.
Peter Ole Kvint