Agrimony Herb is a hedge plant related to the Rose. It is native to the Northern Hemisphere and part of Africa. It has yellow petals with an egg shaped leaf, and the entire plant is harvested and everything except for the roots is used.
Agrimonia (from the Greek ἀργεμώνη (for those who know Greek)), commonly known as agrimony, a perennial herbaceous flowering family of plants, native to the regions of the Northern Hemisphere, with one species also in Africa. It is also known as Church Steeples, Stickwort, Garclive (Anglo Saxon,) and Cocklebur. The species grow to between 1.6–6.6 ft tall, with interrupted pinnate leaves, and tiny yellow flowers on a single (usually unbranched) spike.
In the ancient times, it was used for foot baths and tired feet. Agrimony has a long history of medicinal use. The ancient Greeks used agrimony to treat eye ailments, and it was made into brews for diarrhea and disorders of the gallbladder, liver, and kidneys.
The Anglo-Saxons boiled agrimony in milk and used it to improve erectile performance. They also made a solution from the leaves and seeds for healing wounds; this use continued through the Middle Ages and afterward, in a preparation called eau d'arquebusade, or "musket-shot water". It has also been added to tea as a spring tonic and the English poet, Michael Drayton, once hailed it as an "all-heal" and through the ages it was considered a panacea. Along with all of this, traditional British folklore states that if a sprig of Agrimonia eupatoria was placed under a person's head, they would sleep until it was removed.
“If it be leyd under mann’s heed,
He shal sleepyn as he were deed;
He shal never drede ne wakyn
Till fro under his heed it be takyn’ (Grieve, 1931, p. 13)”.
Wether or not any of these ancient remedies work or not is up for debate. Due to the difference of each persons body makeup one thing that could work for one person or a group of peoples could be ineffective or even detrimental to another.