Cirsium japonicum DC. (Fam. Asteraceae)
ENGLISH NAME field thistle herb
Herba Cirsii Segeti is produced in most provinces in China. It is collected in summer, washed, dried in sunlight, cut into pieces, and used unprepared.
FLAVOR, PROPERTY, AND CHANNEL TROPISM
Sweet in flavor, cool in property, acts on the Heart and Liver channels.
Removes Blood Heat, arrests bleeding, treats carbuncles.
Used for bleeding due to Blood Heat, including hemoptysis, epistaxis, metrorrhagia, and hematuria. It is especially effective for hematuria and often used with Pollen Typhae (Pu Huang) and Caulis Akebiae (Guan Mu Tong), as in "The Herba Cirsii Segeti Decoction" (Xiao Ji Yin Zi).
For sores, boils, and carbuncles, it is used alone for an oral dose or crushed for topical application.
DOSAGE AND ADMINISTRATION
io—15 g, or 30—60 g fresh herb, decocted in water for an oral dose. Appropriate quantity for external use.
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