Platanus occidentalis L. Engl.: American sycamore, buttonwood.
Classic texts: Scudder's Materia Medica, 1898: Diaphoretics.
Classic texts: Madaus 1938.
Classic texts: Boericke 1901.
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.