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First, Zhejiang Sanye Green
The root tubers are spindle shaped, oval, gourd shaped or oval, relatively round, generally 1.5 ~ 3.5cm long, 0.7 ~ 1.5cm in diameter. The surface is brown brown, most is smooth, a few have wrinkles and small nodular protuberance of skin hole like, or there is depression, its residual brown fine root. The quality is hard and brittle, the section is flat and rough, white, pink, visible light brown cambium ring, water extract has obvious viscosity. The air is mild and the taste is sweet.
Guangxi Sanye Green
The root is larger, round or oval or irregular shape, generally 2.0 ~ 4.5cm in length, 1.0 ~ 2.5 in diameter. The surface is brown brown, most have furrow and skin hole like small tumour shape protuberance, have fibrous root mark. Hard and brittle, flat and smooth section, pink, powdery, poor viscosity of water immersion solution. The air is mild and the taste is sweet.
Comparison of the characters of Cymbidium trifoliata from Zhejiang and Guangxi:
The individual of Guangxi sanye green is large, most of the surface is wrinkled, the cross section is pink, and the viscosity of water extract is not enough. However, the individual of Zhejiang clover is smaller, more round, smooth, white section, water extract has obvious viscosity. [4]
Three, Chongqing three leaf green
Chongqing wild cymbidium triphylla grows in dense forest at an altitude of 500M above sea level. The surface of mature tubers is smooth and wrinkless, the section of fresh tubers is white, and the dry tubers can see brown cambium ring. The new young leaves are pale green and gradually turn purplish red in autumn before returning to green in the spring. Because of its smooth surface, the wild environment is usually the mountain forest stone crevices in Yinshan, so it is called broken stone beads locally.
