Hello Everyone,
Two famous authors of those times researched and wrote books on that topic:
https://pfarrerkuenzle.ch/ Johann Kuenzle, a priest in Switzerland, and
Maria Treban https://www.mariatreben.com/, an Austrian herbalist.
I do have their books and can confirm that their herbal research confirms what my grandmothers used to harvest in the gardens, forest and fields for preservation as medicinal plants. I grew up there...
Rosina T. Schmidt