History
Xyno was an extremely addicted drug that was produced from harvested Yellow Claw poppy flowers. The drug was more addicted than heroin and more dangerous too, with short-term usage often leading to death. It became a plague in China till they wiped it out a generation ago through the burning of villages and fields. Wolverine learned that someone was trying to resurrect the Xyno drug trade, starting with the production and harvesting of Yellow Claw poppies in underground poppy fields in San Francisco, which he put an end to.[1]