From Urban Farmer Seeds:
 
"The Chile de Arbol Pepper has a bold, smoky flavor that is great for different sauces. This pepper variety produces a bush that can reach 3-4'. These peppers look similar to the long and thin cayenne peppers. The Chile de Arbol Pepper is very popular in Mexican cooking and commonly added to soups, sauces and almost anything. This pepper is considered superior to many other peppers for its heat and smoky flavor!"