What are the 12 original healing herbs/plants ?

Where did you get the idea that there are 12 original healing herbs? Herbs have been used as medicines since man existed. There is evidence of herbal use from the earliest archeological sites, and many of the herbs are ones that are still used in herbal medicine today. There were 12 original Bach flower remedies, but as these are not the same as the ones you have already mentioned, it is not likely that you are referring to Bach flowers.

Each system of herbal medicine has its own favourites, so to answer more specifically, I’d need to know if you are referring to Chinese, Ayurevedic or Western Herbal medicine. Western herbal med includes the old Arabian and Egyptian medicine too, so how far back are you talking about?

In the middle ages, all herb gardens were required to contain certain medicinal herbs, many of which are now used predominantly for culinary purposes (although they do have great medicinal properties).

Sorry I can ‘t give any more information without knowing exactly what you are referring to.
All the best in your search

fennel, rosemary, oregano, basil, thymes , nettle, white willow bark, fenugreek, rue, coriander…hippocrates documented approximately 400 herbs….but you are correct that he did use 12 favorites most often. I should know this but i dont…The above herbs are ones that in kow he used but im not sure if they are in his 12 favorites.