1. My grandfather used to pick and dry California poppies (the whole plant), then grind it all up and roll it into cigarette papers and smoke it. This gave him and his friends a mild euphoric feeling, with no known side effects [Andover, Hampshire, December 2013].
Other records of this practice would be appreciated; please send them to roy@plant-lore.com
Image: planted on grave, Brompton Cemetery, Royal Borough of Kensington and Chelsea, London; May 2015.