Origin
The roots and rhizomes of Clematis chinensis Osbeck, C. hexapetala Pall. or C. manshurica Rupr. of family Ranunculaceae.
Location
The first one is produced in the provinces of Jiangsu, Anhui and Zhejiang of China, and the last two are produced in northeast area of China.
Harvest
Collected in autumn.
The actual smell and taste
Clematis chinensis Osbeck is light in smell and tasteless; C. hexapetala Pall is salty; and C. manshurica Rupr. is pungent and spicy.
Best quality
Even root, black peels, white woody and solid nature.
Processing
Dried in sunlight, cut into segments, and unprocessed.