What are the effects, functions and precautions of agarwood?

Effects: promoting qi and relieving pain, warming and stopping vomiting, absorbing qi and relieving asthma.

Function: Used for chest and abdominal distension and pain, stomach cold, vomiting and hiccups, kidney deficiency, qi inversion and asthma.

Agarwood is the resin-containing wood of the Thypeaceae plant Agarwood. Tree, 5-15 meters high, with dark gray bark, almost smooth, and tough fibers; branchlets are cylindrical, with crepe lines, sparsely pubescent when young, and then gradually fall off, becoming hairless or nearly hairless. Produced in Guangdong, Hainan, Guangxi, and Fujian. It likes to grow in low-altitude mountains, hills and sparse forests in sunny places on roadsides.

The resin accumulated after the old stems are injured, commonly known as agarwood, can be used as raw materials for spices and as a special medicine for treating stomach diseases; the bark fiber is flexible, white and fine, and can be used as raw materials for high-grade paper and artificial cotton; the xylem Aromatic oils can be extracted, and extracts can be made from the flowers.

Morphological characteristics:

Agarwood, a tree, 5-15 meters high, with dark gray bark, almost smooth, and tough fibers; branchlets are cylindrical, with crepe lines, and are thinned when young. Puffy, gradually falling off, hairless or nearly hairless.

The leaves are leathery, round, oval to oblong, sometimes nearly obovate, 5-9 cm long, 2.8-6 cm wide, apex acute or acute with short apex, base broadly wedge-shaped. , dark green or purple-green above, bright, light green below, hairless on both sides, side veins 15-20 on each side, more obvious below, small veins slender, nearly parallel, not obvious, edges sometimes covered with sparse pubescence; The petiole is about 5-7 mm long and hairy.

The flowers are fragrant, yellow-green, and numerous, forming an umbel; the pedicel is 5-6 mm long, densely covered with yellow-gray pubescence; the calyx tube is shallow bell-shaped, 5-6 mm long, both sides are flat Densely pubescent, 5-lobed, lobes are ovate, 4-5 mm long, apex is blunt or acute, both sides are pubescent; petals are 10, scale-like, inserted at the throat of the calyx tube, densely hairy; 10 stamens, arranged in 1 whorl, filaments about 1 mm long, anthers oblong, about 4 mm long; ovary oval, densely covered with gray-white hairs, 2 cells, 1 ovule in each cell, style very short or absent, stigma head shape.

The capsule fruit stem is short, ovoid, green when young, 2-3 cm long, about 2 cm in diameter, with a short pointed tip at the top, attenuate at the base, densely covered with yellow pubescence, and 2 lobes. , 2 chambers, each chamber has 1 seed, the seed is brown, ovoid, about 1 cm long, 5.5 mm wide, sparsely pubescent, with appendages at the base, the appendages are about 1.5 cm long, the upper end is wide and flat, and the width is about 4 mm, the lower end is handle-shaped. The flowering period is spring and summer, and the fruiting period is summer and autumn.

Growing environment:

Agarwood trees are 5 to 10 meters tall and mostly grow in mountain rainforests or semi-evergreen monsoon forests. Chinese agarwood is mainly distributed in Guangdong, Hainan, Guangxi, Yunnan, Fujian and other provinces generally grow below 400 meters above sea level, and can reach 1,000 meters above sea level in Hainan. The unique climate conditions in Guangdong Province make it a suitable place for the growth of agarwood trees, so it is also known as the "Hometown of Agarwood in China" Good name.

Status of the species:

In recent years, due to the low natural reproduction rate of agarwood trees and man-made predatory logging, domestic agarwood production has been seriously insufficient, while market demand has continued to expand, and the contradiction between supply and demand has become prominent. . After realizing the market value of agarwood, not only Shannon, but also local governments in agarwood-producing areas joined the battle for the agarwood industry and introduced relevant policies to support the agarwood industry.