Oh, dear... Five years late. I'm sorry I missed this question.

If you're still around, Azizi, and can read this:

As I understand it, shoes (for men) and purses (for women) made from alligator leather were such a status symbol of wealth that it actually contributed to alligators being endangered -- much like ostrich plumes in ladies' hats.

I don't know if there were any magic or symbolic connection between alligators and herbalism, but it might be a clue that the herbalist in question was making a lot of money off her business, and that she wasn't just doing it out of the charity of her heart...