Polygonatum x hybridum Brugger Convalliariaceae. Hybrid Solomon's Seal (P. multiflorum x P. odoratum) It has the RHS Award of Garden Merit. Rhizomatous herbaceous perennial. Distribution: Garden plant whose parents come from Europe and Asia. Dioscorides (70 AD ex Beck, 2005) reports that Polygonatum is good for wounds if a poultice is applied, and that it also removes facial blemishes. Photographed in the Medicinal Garden of the Royal College of Physicians, London.