de arbol is a mid to quite hot pepper popular in western Mexico, where
they are sometimes called pico de pajaro (bird beak) or cola
de rata (rat tail). Chile de arbol is apparently related to the cayenne
peppers. The pods are 2-3" long and a quarter-inch wide with thick walls.
The bush gets 2-4' tall and is very prolific. Chile de arbols become translucent
when dried. The dried peppers are usually ground and used in red salsas.
They're sometimes strung and made into decorative wreaths. The name, which
means "tree pepper", refers to the growth form of the bush, not its size.