[Habitat distribution] Ecological environment: 1. Born in a ravine, waterside or sparse forest at an altitude of 1000-2800m.
2. Mostly cultivated.
Resource distribution: 1. Originally produced in eastern my country, now it is often cultivated throughout the country.
2. Distributed in Hunan, Guangxi, Sichuan, Guizhou, Yunnan and other places.
3. Distributed in Guizhou, Yunnan and other places.
4. Distributed in Yunnan.
[Properties] Identification of black camellia leaves obovate or elliptical, 5-10cm long, 2.5-6cm wide; apex is pointed and blunt, base is wedge-shaped, edges are serrated, yellow-green; surface is slightly shiny, hairless, or The back and edges are slightly hairy; leathery. The petiole is cylindrical, 8-15mm long. Slightly smelly, slightly bitter and astringent in taste.