Pretty much any and every plant is smokeable. But smoking catnip will have no psychoactive effects. Meaning, it's not going to get you high. It's like smoking tea leaves: pointless, yet popular among...
The volatile oil of mugwort includes thujone, linalool, borneol, pinene. Also contains artemisinin, hydroxy-coumarins, lipohilic flavonoids, vulgarin, and triterpenes.
Salvia is in most states, also k2 is in some states. The ban discussed above only relates to herbal incense containing 5 synthetic cannabinoids, JWH-018, JWH-073, JWH-200 CP-47, and...