Aji Pineapple (Capsicum baccatum)
The Aji Pineapple is a gorgeous yellow baccatum pepper with elongated fruits that average from 2-3 inches long. They begin green and ripen to the vibrant yellow that you see in the photos. Similar to other Ajis, which are typically bright and fruity, the Aji Pineapple runs around 20,000 Scoville Heat Units, so it is moderately hot.
I'm told this is a rare chili pepper, though that is a shame. It is a delicious pepper and works in many a dish. The plants are easy to grow and are very productive, at least from my personal experience.
They are so named because, true to form, they have a distinct pineapple taste. Very fruity. Perfect for a hot sauce. Speaking of...