1、 Leaf difference

The basal leaves of tartary buckwheat tea are wide obovate, 23 to 25 cm long and 18 to 20 cm wide. The top is blunt, the base is wedge-shaped, the edge has teeth of different sizes or double serrations, the petiole is 20 cm long and has small lobes. The stem leaves in the middle are oblong, 3 to 4 cm long, with several teeth on the edge and no handle. The leaves on the upper part of the stem are wide and linear, the base is gradually narrow, and the leaves are entire

The leaves of Kudingcha are thick leathery, spiral and alternate, 8 to 25 cm long and 4.5 to 8.5 cm wide, with sparse sharp teeth on the edge and no villi on both sides. The leaves are oval and oblong, without shrinkage, and some are slightly curled longitudinally. The upper part is yellow green or gray green, shiny, and the lower part is yellow green

2、 Flower difference

Tartary buckwheat tea raceme with yellow flowers, 6 to 8 mm in diameter, and inverted ovate petals

Kudingcha flowers are dioecious, or unisexual flowers coexist with bisexual flowers, with white or yellow flowers