419. OXYDENDRUM ARBOREUM De Candolle.—SOURWOOD. The leaves of this North American tree are tonic, diuretic, and refrigerant, used in dropsy. Dose of fluidextract: ½ to 2 fl. dr. (2 to 8 mils).
Henriette's herbal is one of the oldest and largest herbal medicine sites on the net. It's been online since 1995, and is run by Henriette Kress, a herbalist in Helsinki, Finland.