makes no difference when you get your info from books at least printed pre 1950………there were hundreds of plants known to help with killing your worms.
Just avoid the man manipulated plants of today that are forced to create flowers for flower gardens.
Some suggest there are actually over 2 million hens on earth and the best government trained / medical drug creator in history, believed we humans are "born" with the instincts to understand them all….that were are created by the same god that created the plants and have a "connection. This man fames himself with the creation of 20 of the most $$$ making drugs of all times. He studied plants and then made commercial drug synthetics.