Chinese catalpa bark

Chinese catalpa bark

(notes on materia medica)

Another name: Catalpa bungei.

[source] phloem of bark or root bark of Catalpa bungei.

[plant morphology] Catalpa bungei, also known as Catalpa bungei and catalpa catalpa.

Deciduous trees, up to 15 m high. The trunk is straight and the branches are straight up. The leaves are simple, opposite, triangular, broadly ovate to broadly ovate elliptic, 6-16 cm long and 6-12 cm wide, apex long pointed, base truncate to broadly cuneate, entire, sometimes 5-6 pairs of sharp teeth near base, glabrous on both sides; petiole 2-8 cm long, sometimes pilose. Raceme, corymbose, with 3-12 flowers; apex of sepal with sharp crack; corolla white, bell shaped, 2-lipped, about 4cm long, upper lip with 2 smaller lobes, lower lip with 3 larger lobes, with purple spots inside; stamens 4, 2 strong; ovary superior, style 1, stigma 2-lobed. Capsule slender, 25-50 cm long, about 5 mm wide. Seeds narrowly oblong, ca. 1 cm long, ca. 2 mm wide, with long white hairs clustered at both ends. The flowering period is April. The fruit period is from July to August.

Born in fertile mountains. It is distributed in Hebei, Shandong, Shanxi, Shaanxi, Jiangsu, Zhejiang, Yunnan and Guizhou,

The leaves of this plant (Catalpa bungei) are also used for medicine. See the special section for details.

[chemical constituents] the flower contains volatile oil.

[nature and taste] "materia medica: bitter, cold, non-toxic. "

[function indications] for carbuncle, sore, hemorrhoids, fistula, vomiting, cough.

① In the collection of materia medica: "it is mainly used for vomiting, killing three insects and skin insects; the decocting ointment is used for sticking ulcers, gangrene, fistula, carbuncle, chancre and pheasant disease; it can remove pus and blood, grow skin and bones. "

② "Haiyao Materia Medica": "it is mainly used for digestion, astringent bowel, lower Qi and upper Qi cough. "

[usage and dosage] oral: decoction, 0.5 ~ 3 yuan. External use: tamping or boiling cream.

[selection] ① treatment of aphthous ulcer: the third and fourth degree of Catalpa bungei and wet paste. (Qian Jin Fang)

② Treatment of vitiligo: Catalpa bungei five Jin. Fine file, with water five Dou, fry five liters, filter out dross, but in the slow fire again fry such as paste paste. It's collected with a syringe. Take the ointment and rub it on the affected area every two or three days. (Sheng Hui Fang)