They are known as synthetic marijuana. Originally developed for burning as an incense, but it's appearance is a lot like pot, and now some have taken to smoking it like pot. Even though there is a warning on there stating, "not meant for human consumption".
It's been a huge news story around here lately. Michigan just enacted a law this week making it illegal to sell or use in the state of Michigan. Oh yeah, that also applies to bath salts too...can't buy, sell, or use them either.
Here is a link from the DEA that describes it:
Copy & paste to friend: (Click inside box; Ctrl + C to copy; Ctrl + V to paste)
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