Royal fern

A pale, poorly nourished child with soft or bowed long bones and general debility, calling for a nutritive demulcent tonic rather than a stimulating remedy

Loose, irritable diarrhea in a weak, undernourished patient where the bowel lining seems raw rather than acutely infected

Overview. Osmunda regalis, the royal fern, is a large, handsome fern of wet woodlands, fens, and stream banks across temperate Europe, Asia, and eastern North America, belonging to the ancient fern family Osmundaceae. The thick, fibrous rhizome is the part used medicinally, traditionally dug in autumn and dried for infusion or tincture. In older European and eclectic American practice it held a niche reputation as a mucilaginous, nutritive remedy for weak, poorly formed bones and for debilitated states with bowel irritation, and externally as a poultice for sprains and bruises.

Clinical Notes. The rhizome yields a thick, jelly-like mucilage on infusion, which is the basis of its traditional demulcent and nutritive reputation. Eclectic physicians reached for it in children and adults with poor bone development, rickets, or general osseous weakness arising from malnutrition, often combining it with other nutritive tonics of the day such as nettle, oatstraw, or cod liver oil to support overall tissue repair rather than as a rapid-acting remedy.

Therapy. With some physicians this agent is very popular in the treatment of the above disorders. It is also useful in weak back, especially in those cases where, with weakness of the muscular structure of the back, there are symptoms of incipient disease of the spinal vertebrae.

Specific Symptomatology. Diseases of the bones, from malnutrition. Weakness of the osseous structure, rickets, diarrhea and dysentery from local irritation in poorly nourished patients,