De Arbol
Species Name: Capsicum annuum var annuum.
Color: Green maturing to bright red.
Shape: Narrow, curved.
Description: Not very flavorful but often used for extra heat in dishes or sauces. Tannic, smoky, acidic flavor.
Scoville Heat Units: 15,000 – 30,000
Other Names: Alfilerillo, Bravo, Cola de Rata, Cuauhchilli, Ginnie Peppers, Pico de Pájaro
Related Cultivars: None that I know of.
Most Commonly Grown In: Jalisco, Central Valley of Mexico

"De Arbol" means "tree-like". Not often used fresh, but found dried, packaged in many stores.