200,000 - 580,000 Scovilles.
This pepper is a cultivar of the habanero. It once held the Guinness Record for the hottest chili pepper, but the Bhut Jolokia now claims that prize. The red savina is a bright red and robust fruit, with up to 50 fruits appearing per pepper plant.
It was the first habanero pepper to receive USDA plant-protection certification, and it has even been one of the major ingredients involved in creating police-grade pepper sprays - though for culinary use it often turns up in somewhat-safer chili powder and hot sauces!