Bitter orange peel. Compared to the orange sweet, it has a bitter taste. It is also used as a spice, but its low sweetness makes it a good blend with other herbal teas. Orange Bitter Peel, Cut Scientific Name: Citrus aurantium Family: Rutaceae Part: Pericarp Also known as Daidai Country of origin: Paraguay * The country of origin is subject to change without notice due to climate and other factors.