Unless he's planning on having a poppy seed bagel, there isn't much to extract there. He might also want to keep the following in mind: "You can pick, bend, eat or smoke a Poppy as long it is not on state property. However, if a Poppy or any other flower is on School, Park, a median or even outside a courthouse, DO NOT pick or hurt the flower. Harming the flower or plant life could be considered a misdemeanor offense, and you can be fined up to $1000 and as many as six months in jail." Source: https://www.cbsnews.com/sanfrancisco/news/is-it-really-illegal-to-pick-a-california-poppy/