Cayenne Pepper is a hot chili pepper used to flavour dishes. It’s named Cayenne after the city of Cayenne, the capital of French Guiana. It is also known as the Guinea spice, cow-horn pepper, red hot chili pepper and bird pepper. Also known as red pepper in its powdered form. It is a close relative of bell peppers, jalapeños, paprika, and others. The Capsicum genus is in the nightshade family.  The peppers are normally dried and ground, or pulped and baked into cakes, which are then ground and sifted to make the powdered spice of the same name. Cayenne is used in cooking spicy dishes, as a powder or in its whole form. As such its popular in Korean, Chinese, Thai and other Asian cuisine. It is generally rated at 30,000 to 50,000 Scoville units.