Lycium barbarum (simplified Chinese: 宁夏枸杞; traditional Chinese: 寧夏枸杞; pinyin: Níngxià gǒuqǐ) is one of two species of boxthorn in the family Solanaceae from which the goji berry or wolfberry is harvested, the other being Lycium chinense (Chinese: 枸杞; pinyin: gǒuqǐ). It is native to southeastern Europe and Asia.

It is also known as Chinese wolfberry, Chinese boxthorn, Himalayan goji, Tibetan goji, mede berry, barbary matrimony vine, Duke of Argyll's tea tree, Duke of Argyll's tea plant, Murali (in India), red medlar or matrimony vine.