In China, where most of the world's commercial goji berry production is found, most plants with high quality fruit are of Lycium barbarum L. var. (herbazest.com)
Fructus lycii, also called wolfberry and goji berry, is the ripened fruit of the matrimony vine, a deciduous shrub that is known scientifically as Lycium barbarum L. Used for centuries in traditional Chinese medicine, fructus lycii grows naturally in several of China's northern provinces, including Gansu, Ningxia, Shanxi and Xinjiang. (healthyeating.sfgate.com)
, An evidence - based update on the pharmacological activities and possible molecular targets of Lycium barbarum polysaccharides, 2015 (herbazest.com)