White oak?

White oak?

(Tianmu Zhi Zhi, Zhejiang)

[source] it is the involucre with gall on the fruit of Quercus albus, a Fagaceae plant.

[plant morphology] Quercus alba, also known as Quercus variabilis, Quercus albopictus, Quercus acutissima, Castanopsis pernyi, Castanopsis Carpinus, Castanopsis kaempferi.

Deciduous trees, up to 25 m high. Branchlets densely gray yellow to gray brown tomentose. Leaves alternate, leathery, obovate to obovate elliptic, 7-14 cm long and 3-7 cm wide, apex obtuse, base cuneate, margin undulate toothed, sparsely stellate hairy or nearly glabrous on the top, densely covered with gray stellate villi on the bottom; petiole 3-10 mm long. Flowers unisexual, monoecious; male flowers in catkin, 6-7 cm long, perianth segments 6, pilose; stamens 6, rare 8; female flowers solitary or 2-3-clustered, ovary 3-locular, stigma 3-4. Cupule shallow cup-shaped, 4-8 mm high, 8-11 mm in diameter, tapetum ovate lanceolate, imbricate arrangement. Nuts conic or long ovate, about 1.2-2.4 cm high, 0.7-1.1 cm in diameter. The flowering period is April. The fruiting period is October.

It grows on the hillside and forest of hills. It is distributed in the Yangtze River Basin and South China provinces.

[chemical composition] the bark and shell of Quercus Alba contain tannin, and the seed contains 30% starch.

Functions and indications: Invigorating the spleen, eliminating accumulation, regulating qi, clearing fire and improving eyesight. Treatment of hernia, malnutrition, red eye pain.

[prescription selection] ① for adult hernia and children's food: three to five pieces of white oak, fried soup with white sugar.

② Treatment of infantile malnutrition: white oak? Seven to eight money, two money, wild Gangzi (wuqianke) root four to five money. Fried in water, once in the morning and once in the evening. Avoid eating hot and sour food, mustard and fragrant food.

③ Treatment of fire eye pain: white oak? Decoction. (1) records of yam planting in Tianmu, Zhejiang Province

④ Treatment of furuncle: white oak fruit involucre burning ash storage, research fine powder, sesame oil applied to the affected area. (summary of drug source survey in Wenzhou)