False Unicorn (Chamaelirium luteum), also known as fairy wand, is a plant native to North America that has a long history of use in traditional herbal medicine, particularly among Native American and early European settlers. It has been used traditionally to support various aspects of women’s reproductive health, including as a tonic for "uterine weakness," irregular menstruation, and symptoms associated with menopause. In the context of postpartum weakness, historical herbal texts and traditions sometimes recommend False Unicorn as a restorative agent, believed to help tone and strengthen the uterus after childbirth and support recovery from the physical toll of pregnancy and labor.

Despite its traditional use, there is a lack of robust scientific evidence to validate these claims. Modern clinical studies evaluating the efficacy or safety of False Unicorn for postpartum weakness or any gynecological conditions are virtually nonexistent. Most references to its use are found in herbal compendiums and ethnobotanical records, rather than peer-reviewed scientific literature. Its mechanism of action remains speculative, often attributed to its supposed "tonic" effects on the female reproductive system, but these claims have not been substantiated by controlled research.

In summary, the use of False Unicorn for postpartum weakness is based primarily on traditional and historical use, with little to no scientific validation available.