Mesua ferrea L. Engl.: gau-gau, mesua. Sven.: nagasträd, ceylonjärnträ, ostindiskt järnträd, penaga.
Classic texts: Sturtevant 1919.
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.