Chipotles of the meco variety
In today's society, chipotles are predominantly sourced from Mexico, where they produce two different varieties of the spice: morita, which is most commonly found in the United States, and the larger meco, which is mainly used domestically. Morita means "small mulberry" in Spanish, and is grown primarily in the Chihuahua State, it is typically darker in color with a reddish-purple exterior. They are smoked for less time, and in many cultures considered inferior to the meco. The meco, which is also known as chili ahumado or típico, is grayish tan in color with a dusty looking surface; some say it resembles a cigar butt. This variation of the pepper tends to be smokier in taste, and are the preferred chipotle of many natives. They are sometimes referred to as chili navideño because they are reconstituted and stuffed to make a very traditional dish that is most popular at Christmas time amongst Mexican locals.
Most chipotle meco never make it across the Mexican border, although they can occasionally be found for sale in Mexican specialty markets.
Chipotle grande is a smoke-dried Huachinango chili with a similar flavor profile, however the chili is larger, and higher in cost. Sold fresh at the market, this variation of the chipotle pepper will typically sell for three to four times as much as jalapeño.