Pterocephalum

Pterocephalum

(commonly used Chinese herbal medicine in Tibet)

[synonym] Bangzi duwu (Tibetan name).

[source] it is the root of pterocephalum officinale.

[plant morphology] pterocephalum, also known as pterocephalum spatulatum.

Herbs perennial, up to 50 cm tall, hairy throughout. Root straight, cylindrical, dark brown. The root of the leaf is spatulate or strip spatulate, entire or pinnate, 5-10 cm long and 1.5-2 cm wide, apex obtuse, base narrowed into petiole. Inflorescence terminal; involucral bracts leaflike, ovate oblong; flowers white to pink; calyx teeth bristly, bristles densely covered with silver white villous; corolla 2-lipped, upper lip short, 2-lobed, lower lip large, 3-lobed. Stamens 4, slightly outstretched: inferior to ovary, enclosed in cup-shaped long hairy involucre. Achenes obovate, flat, densely covered with silvery white villi.

Born in alpine grassland, roadside and stone gap, etc. It is distributed in Yunnan, Sichuan and Tibet.

[collection] roots were collected from July to September. Wash, slice and dry.

[chemical constituents] it contains alkaloids and flavonoid glycosides.

[nature and taste] common Chinese herbal medicine in Tibet: "bitter, cold, with little poison. "

[functions and indications] ① common Tibetan herbal medicine: "clearing away heat and toxin, dispelling wind and dampness, relieving pain. It is used to treat fever caused by cold and various infectious diseases, heart heat, blood heat, etc. "

② "Plateau Chinese herbal medicine treatment manual": detoxification and antibacterial. For carbuncle, sore, poison, influenza and measles. "

[usage and dosage] oral administration: decoction, 1-3 yuan; or powder.

Chinese PinYin : Yi Shou Cao