Chilhuacle Negro Pepper https://www.hrseeds.com/product-page/chilhuacle-negro-pepper Chilhuacle Negro Pepper, Capsicum annuum, Scoville units: 900 - 2000 SHU. The Chilhuacle Negro Pepper originates form Oaxaca, Mexico and grows only in the Cañada valley in Oaxaca and used throughout central America. The existence of this pepper is in danger of disappearing from the market place due to high production cost and lower production rates. It is used to make MOLE in Mexico.