Illustration of cannabis from the Vienna Dioscurides. (Wikimedia Commons)

Illustration of cannabis from the Vienna Dioscurides. (Wikimedia Commons)

Illustration of cannabis from the Vienna Dioscurides [Public domain], via Wikimedia Commons.
Source: http://commons.wikimedia.org/wiki/File%3ACannabissativadior.jpg
File: http://upload.wikimedia.org/wikipedia/commons/5/5f/Cannabissativadior.jpg