“Liáng chá refers to “cooling tea” or herbal tisanes/teas produced from water infusions of a range of plant species other than the caffeine-containing tea plant (Camellia sinensis; Theaceae). Plant material may consist of fresh or dried leaves, fruit, flowers, pollen, nuts, barks, seeds and roots from a single species or multiple species. The practice of drinking liáng chá is an ancient custom regarded to have originated from the Lingnan region of southern China over 2,000 years ago. “
Extrait de Ethnobotanical survey of cooling herbal drinks from southern China.

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