1, Pu 'er tea (scientific name: Camellia sinensis var. assamica), a big tree, is as high as 16 meters, with tiny hairs on the shoots and white hairs on the terminal buds. The leaves are thin leathery, oval, brown-green after drying on the top, slightly shiny, light green on the bottom, hairy on the ribs, the rest are pubescent, and the old leaves become bald; Lateral veins 8-9 pairs, obvious above. Flowers axillary and pilose. Bracts 2, caducous. Sepals 5, suborbicular, glabrous outside. Petals 6-7, obovate, glabrous. Stamens 8- 10 mm long, free and glabrous. Ovary 3-loculed, velvety; Style 8 mm long, apex 3-lobed. Capsule oblate-triangular. Seeds per room 1 seed, nearly round, diameter 1 cm.

2. Pu 'er tea is mainly produced in Xishuangbanna, Lincang and Pu 'er in Yunnan Province. Pu 'er tea pays attention to the brewing skills and the art of drinking, and its drinking methods are rich, which can be both clear and mixed. Pu 'er tea soup is orange-yellow, with high and lasting aroma, unique fragrance type, strong taste and durable foam resistance.