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Where is the latest production area of Tongcao (rice-paper plant pith)? A detailed explanation of its distribution
Tongcao, also known as Koutuo, Linan, Huoduo, Yishang, Huacao, etc., is the stem pith of Tetrapanax papyrifer, a green shrub or small tree of the Araliaceae family. It has the effects of clearing heat and promoting diuresis, and promoting qi and lactation. It mainly treats damp-warm disease with red urine, strangury with painful urination, edema with scant urine, failure of milk secretion, and other conditions. Below