Cayenne Peppers, also known as the Guinea Spice or Bird Pepper, are native to the tropics of Central and South America. As Cayenne Peppers mature the color changes from green to red. When the Cayenne Peppers are still green, they can be used to make excellent salsas. When the peppers become red, they are more commonly used in dried powders as a spice (Red Pepper in your spice cabinet!). $1.55.