Maidenhair

Maidenhair is yet another of those disregarded herbs, thought of as mere weeds, but concealing secrets known (mainly) only to witches from places such as Lancre. Magrat Garlick knows something of its properties, having been extensively educated in herbology by her mentor Goodie Whemper. Granny Weatherwax and Hilta Goatfounder, by inference from the name, may well use it in, er... certain preparations.