Is cayenne pepper the same as capsicum?

Yes, cayenne pepper is a type of capsicum. Capsicum is the genus of flowering plants in the nightshade family, Solanaceae, that includes peppers, bell peppers, and chili peppers. Cayenne pepper is a variety of chili pepper that is typically used as a spice. It is made from the dried, ground fruits of the Capsicum annuum plant. Cayenne peppers are typically red or orange in color, and they have a spicy, pungent flavor.