White flowers reflect mountain red

White flowers reflect mountain red

(records of Sichuan Traditional Chinese Medicine)

[synonym] Rhododendron bungeanum (Chinese tree taxonomy), Rhododendron bungeanum (North China Economic flora), Rhododendron bungeanum (Guizhou folk medicine Collection).

[source] it is the flower, root, stem and leaf of Rhododendron fortunei.

[plant morphology] Rhododendron fortunei

Evergreen or semi evergreen shrubs, 2-3 m high. Young branches gray hirsute. Single leaf subwhorled; leathery; elliptic or elliptic lanceolate, 3-5 cm long, 1-2 cm wide, apex obtuse, with short tip, base cuneate, entire, green above, sparsely covered with grayish brown hairs, greenish below, covered with brown hairs, especially on veins; petiole with grayish brown hairs. Flowers 1-3 terminal, aromatic; sepals 5, lanceolate, green, 1.5 cm long, fragrant Glandular hairs and villi; corolla white, broad funnel-shaped, 4-5 cm in diameter, lobes oval; stamens 5-10, filaments slender, glandular hairs near base, anthers purple; ovary superior, with many ovules in each chamber, style slender, about 4 cm long, stigma capitate, villous. Capsule hairy. The flowering period is from April to May. The fruiting period is September.

Cultivated or wild. It is distributed in Jiangsu, Zhejiang, Fujian, Sichuan, Guizhou, Hebei, Shanxi, Hunan, Shaanxi and other places.

[collection] collect flowers in April, dig roots from September to October, and use them fresh or dry in the sun.

[chemical constituents] the flower contains Rhododendron glycosides and a small amount of Rhododendron. Leaves contain a variety of flavonoids: Quercetin, gossypol, myricetin, Rhododendron and dihydroquercetin. It also contains Rhododendron alcohol, p-hydroxybenzoic acid, proto acid, vanillic acid and citric acid.

In addition, o-pyrocatechuic acid was also found in this plant.

[nature and taste] 1. Classified herbal medicine: sweet in taste and warm in nature. "

② Sichuan Traditional Chinese medicine annals: "it is warm in nature, sweet in taste and non-toxic. "

[function indications] He Xue, San Yu. It is used to treat hematemesis, intestinal wind, dysentery, blood avalanche and traumatic injury.

① Classification of herbal medicine: "it can cure hematemesis, metrorrhagia, dispel wind and cold, and harmonize blood. Stem leaves with, wash wind fire sores. "

② Guizhou folk medicine collection: "roots and flowers: dredging meridians, dispersing blood stasis and treating leucorrhea. "

③ Sichuan Traditional Chinese medicine annals: "flower and root: treatment of hematemesis, red and white diarrhea, intestinal wind, blood and traumatic injury. "

[usage and dosage] oral administration: decoction, 0.5-1 Liang. External use: wash with boiling water.

[poisoning] Rhododendron is easy to be poisoned if it is used as a wild vegetable. It has been reported that four members of a family were poisoned by eating Rhododendron. Each of them took 2-8 Liang. The main symptoms were nausea, vomiting, palpitation, dizziness, dizziness, dizziness, chest tightness, dyspnea, numbness of limbs, etc. physical examination: cyanosis of lips and fingers, increased breathing times, decreased blood pressure, weak heart sound, slow and irregular heart rhythm. ECG showed sinus bradycardia and ventricular premature contraction (5-7 beats / min). All patients were cured after 2-3 days.