What is the most expensive pepper in the world?

Answer 1

Without a doubt it is the Chiltepin (capsicum annum). These are referred to as "the mother of all peppers" being genetically the closest thing to the original species that all modern Chile peppers descended from. They are only about 3/16 inch in diameter, and are usually picked from wild plants, one at a time when red and ripe. The "flesh" of the pepper is very thin. Dried Chiltepins contain mostly air, and the 16 or so seeds vastly outweigh the usable part of the pepper. The price for whole dried ones (with seeds) varies considerably; roughly $8 to $20 per ounce.

Answer 2

Capsicum tovarii is the most rare pepper species in the world. It has only been found to grow in one valley in Peru.