Have you heard of the weed-like substance that's legal in many states?

It’s called Salvia and is suposed to have effects similar to pot. Me and some friends were at the beach this weekend and came across some for sale. It was at a pretty reputable smoke shop, so a couple of my friends decided to buy a small bag. They were expecting crazy hallucinations (explained by the woman who sold it to us) and only ended up with a regular high. Have you ever tried it? Is it legal/illegal in your state?