Wood betony is a parasite, pirating from the roots of its neighbors. You can often see it in patches where it finds roots to live with. It typically grows in sandy soil that doesn't provide enough direct nutrition. The patch shown here was unusually large. Wood betony was sometimes used as medicine or food in more desperate eras. The Menominee believed adding it to feed would make a pony fat and vicious to all but its owner. The Meskawi believed adding it to food could make an estranged married couple romantic again. Is there a strange consistency there? Hopefully the couple didn't become fat, and vicious to all but their partners.