Pekoe, Assam, BOHEA, PRIME, and OOLONG are all types of black tea. PEKOE is a type of black tea that is made from the youngest leaves of the tea plant. Assam is a type of black tea that is grown in the Assam region of India and has a strong, malty flavor. BOHEA is a type of black tea that is made from the leaves of the tea plant that have been withered and rolled. PRIME is a type of black tea that is made from the highest quality leaves of the tea plant. OOLONG is a type of black tea that is made from partially oxidized leaves of the tea plant. A superior grade of black tea is made from the highest quality leaves of the tea plant and is usually more expensive than other types of black tea.