What are the efficacy, function and precautions of agarwood?

Efficacy: promoting qi circulation to relieve pain, warming to stop vomiting and relieving asthma.

Function: Used for chest pain, stomach cold, vomiting, hiccup, kidney deficiency, qi deficiency and dyspnea.

Aquilaria sinensis is a resinous wood of Aquilaria sinensis of Daphne family. Trees, 5- 15 meters high, with dark gray bark, almost smooth and tough fibers; Branchlets are cylindrical, crepe, puberulent when young, and then gradually fall off, glabrous or subglabrous. Guangdong, Hainan, Guangxi and Fujian. I like to be born in low-altitude mountains, hills and sparse forests with sunny roadside.

The resin accumulated after the injury of the old stem, commonly known as agarwood, can be used as a spice raw material and a specific medicine for treating stomach diseases; Bark fiber is flexible, white and delicate, and can be used as high-grade papermaking raw materials and artificial cotton; Aromatic oils can be extracted from xylem and extracts can be extracted from flowers.

Morphological characteristics:

Aquilaria sinensis, a tree, 5- 15 meters high, dark gray bark, nearly smooth, tough fiber; Branchlets are cylindrical, crepe, puberulent when young, and then gradually fall off, glabrous or subglabrous.

The leaves are leathery, round, ovoid to oblong, sometimes nearly obovate, 5-9 cm long and 2.8-6 cm wide, sharp or acute, with a wide wedge at the base, dark green or purple-green at the top, light green at the bottom, hairless on both sides, 15-20 on each side of the lateral veins, obvious at the bottom and slender veinlets. Petiole is about 5-7 mm long and hairy.

Flowers are fragrant, yellow-green, and many flowers form umbels; Pedicel 5-6 mm long, densely yellow-gray pubescent; Calyx tube is shallow bell-shaped, 5-6 mm long, densely pubescent on both sides, 5-lobed, lobes ovate, 4-5 mm long, apex obtuse or acute, pubescent on both sides; Petals 10, scaly, inserted in the throat of calyx tube, densely hairy; Stamens 10, arranged in 1 wheel, filaments about 1 mm long, anthers oblong, about 4 mm long; Ovary ovoid, densely covered with gray hairs, 2-loculed, per locule 1 ovule, extremely short or without style, stigma capitate.

Capsule pedicels are short, ovoid, green when young, 2-3 cm long, 2 cm in diameter, short at the top, tapering at the base, densely yellow pubescent, 2-valved, 2-loculed, with/kloc-0 seeds per locule, brown and ovoid, about 1 cm long, 5.5 mm wide, and sparse. It blooms in spring and summer and bears fruit in summer and autumn.

Growing environment:

Aquilaria sinensis is 5m high-10/0m, and it is mostly found in mountain rain forests or semi-evergreen monsoon forest. China's agarwood is mainly distributed in Guangdong, Hainan, Guangxi, Yunnan, Fujian and other provinces, generally growing below 400 meters above sea level, and Hainan's altitude can reach 1000 meters. Guangdong's unique climatic conditions make it a place suitable for the growth of agarwood trees, so it is also called "the hometown of agarwood in China".

Species status:

In recent years, due to the low natural reproduction rate of Aquilaria sinensis and man-made predatory logging, the domestic output of Aquilaria sinensis is seriously insufficient, while the market demand is expanding, and the contradiction between supply and demand is prominent. After realizing the market value of agarwood, not only citron, but also the local governments in agarwood producing areas have joined the battle for agarwood industry, and have introduced relevant policies to support agarwood industry.