Dragon's Breath?
I am confused by the plant Goldberg supposedly said is poisonous and called Dragon's Breath. It is toxic if you eat it, but you can't knock yourself out by smelling it or breathing in its scent. The flower is called an Angel's Trumpet. If it was toxic by breathing it in, I'd be knocked out all the time because my neighbor grows a ton of the flower and it droops over into our courtyard.
It made the plot line of Sam finding the flowers and Goldberg talking about them seem sort of cheesy. I could see him growing the plants for shamanistic purposes, but they were a bit wrong about the flower.