No need for the forum to indicate to me that you posted 11 hours ago but it only showed me 5 minutes ago.
I wonder if there was a specific reason Doc John omitted BV from his book. Some clues: the book depicts numerous of his top herbs inside front and back covers, BV aka VH is one; he lists in several formulas throughout his book; yet there is no entry fir the herb itself. Here is one I just found.
Perhaps Glaxony and Trapper can contribute along with what you know that most of us do not know