Agave spirits are generically known as mezcals. They are produced from the fermented juice of the agave plant (mistakenly thought of as a cactus; it is actually a lily). Tequila can be produced only from the blue agave (Agave Tequilana Weber) and only in specifically-designated geographic areas, primarily the state of Jalisco. It is a type of mezcal, but people often think of tequila and mezcal as separate categories. Mezcals in general do not bother with classification beyond possibly naming the agave varietal used in production.