The goji berry is a sweet, edible berry that is high in antioxidants. It is often sold in a dried form, but is also found as a juice. Like its more famous cousin, the acai berry, the goji berry is sometimes called a superfruit because of its antioxidants. This is why it is sometimes found as a supplement.
The scientific name of the goji berry is Lycium barbarum. Lycium stands for the genus, indicating that the goji berry is destert-thorn, according to the USDA. Barbarum designates the species, setting the plant apart from others in its genus, such as the water jacket and the Carolina desert thorn.
The goji berry is known by several common names, including the wolfberry, the matrimony vine, the lycii berry and the Duke of Argyll's tea tree. The western snowberry is also attributed as one of the goji berry's names, but it is actually a different species, Symphoricarpos occidentalis, not even in the same genus as the goji berry.
Goji berry is the name that the fruit is most often marketed under. There is no definitive source for the term "goji," but goji is an anglicized version of the mandarin word for the berry: g'uqǐ. One of the regions in which it grows has a similar-sounding name: Gojal.