| Symphytum |
a genus of perennial Old World herbs of the family Boraginaceae, having coarse, hairy leaves and blue, yellow, or purple flowers. S. officina´le is comfrey, a species native to Europe and North America whose roots and leaves are demulcent and astringent.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
|
|---|