1、 Leaf difference

Black Lycium barbarum has 2 to 6 leaves clustered on short branches. The leaves are plump and fleshy. The leaves are strip lanceolate or strip inverted lanceolate, and some are narrow lanceolate. The top of the leaves is round and blunt, the base is gradually narrow, and the two sides of the leaves sometimes curl slightly downward

The leaves of heitiantian are oval, 2.5 to 10 cm long and about 1.5 to 3 cm wide. The top of the leaves is sharp, full-bodied or with irregular wavy coarse teeth. The base of the leaves is wedge-shaped, gradually narrow, and finally petiole. The petiole is 2 cm long

2、 Flower difference

One or two black wolfberry flowers grow on short branches. The pedicel is thin and thin, about 0.5 to 1 cm long. The calyx is narrow bell shaped, about 4 to mm long. The Corolla is funnel-shaped, light purple, about 1.2 cm long

Black day corolla radial, petals 5, usually white.  

3、 Fruit difference

Black wolfberry berries are purplish black, spherical, sometimes slightly concave at the top, with a diameter of about 4 to 9 mm

Black berries are spherical, 2 to 5 mm in diameter, and black purple when mature