Click here for information about Papaver.
Click here for photos of Papaver amurense.
Old texts: Hayne's Getreue Darstellung, vol. 6, 1819: the images.
A herbal distance course
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.