Eucalyptus: Precious medicinal herbs from woody plants

Hoang Dan is a rare and precious tree in our country, listed in the Red Book and needs to be preserved. In addition, this is also a precious medicinal herb that each part has different uses. Let's find out with SignsSymptomsList in the following article!

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• 1. Description of medicinal herbs
• 2. Chemical composition of Hoang Dan
• 3. Pharmacological effects of Hoang Dan
• 4. Dosage, how to use

1. Description of medicinal herbs

1.1. Scientific name, international nomenclature

• Other names : Bach twist, Tung with knots, Ngoc am, Bach Moc...
• Scientific name : Cupressus torulosa D. Don
• Family : Belongs to the Cupressaccae family

1.2. Botanical characteristics of the cedarwood tree

Eucalyptus tree is a woody tree, when mature from 15 to 20 m high, the tree can be up to 40 m tall. Body diameter is about 0.5m. If the trunk has a diameter of 0.8 - 1m, it has a long life of up to hundreds of years. The bark is gray, longitudinally fissured like veins. The tree is divided into many small branches, the young branches are square. Leaves are scaly, small, growing close together and close to the branches.

Unisexual cones of the same origin: female cones are spherical or ovate, male cones are oval in shape. Scales cones have 6 pairs of rings, the scales are 5-sided with ridges and each scale bears 6-8 small fruits. Seeds are globose, with thin wings.

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1.3. Distribution, collection, processing: 

Eucalyptus trees often grow on limestone mountains in mountainous areas about 300 m high or steep sections. Is a water-loving plant, often growing on yellow-gray, brownish rocks. 

Around the world, the tree is found scatteredly in a number of countries in southern China, India and Nepal.

In our country, this plant is also found scattered in some provinces, especially the mountainous provinces in the North of our country such as: Lang Son, Tuyen Quang, Cao Bang, Dien Bien Phu, ...

Harvesting: Harvest time depends on the part used. Usually, this plant is harvested all year round to make medicine.

Preliminary processing: The harvested parts are washed with water and then dried in the sun or dried and stored for later use.

1.4. Parts used by the Emperor

Eucalyptus tree is used quite a lot to make medicine such as leaves, fruits, roots, bark.

Store in a cool place, avoid leaving medicinal herbs in a humid place to avoid mold growth.

The picture depicts the Hoang Dan tree

2. Chemical composition of Hoang Dan

Each part of the eucalyptus tree contains different components, so it has different uses.

The roots and trunk wood contain many essential oils with medicinal properties with a concentration of 4.5 - 5.5%. Leaves have less essential oil.

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3. Pharmacological effects of Hoang Dan

3.1. According to modern medicine

Cedarwood contains essential oils that repel insects such as cockroaches, spiders, rats, and mosquitoes. At the same time, the characteristic aroma of warm, mellow eucalyptus wood helps to relax, reduce stress, help relax, increase feelings of excitement.

3.2. According to traditional medicine

The fruit has a bitter, neutral taste. The leaves and branches have a bitter, acrid, pungent and temperate taste.

Each part of the eucalyptus tree has different uses, specifically as follows:

• Fruit : Used to treat typhoid, abdominal pain, stomach pain, cold treatment, hemostasis;
• Root : Used to treat burns, heal wounds caused by falls;
• Twigs and leaves : Effective in treating nausea, vomiting blood, treating hemorrhoids, stopping bleeding and healing wounds;
• Bark : Has the effect of curing abdominal pain, common diarrhea, diarrhea that does not go away for a long time;
• Essential oils : Use drugs to massage muscle aches, joints, swelling, blood stasis, help disinfect wounds with sores, infections. In industry, the essential oil of eucalyptus is also used to make cosmetics,…

Eucalyptus essential oil has many uses

3.3. Other effects of Hoang Dan

The wood of cedarwood has a high value, often the roots are more valuable than the trunk. Because the wood roots the essential oil, the resin is more dense.

Trees for straight wood, beautiful grain and good termite resistance are used in interior decoration, manufacturing high-class furniture, handicrafts.

Eucalyptus is a rare wood, classified as very endangered, threatened with extinction. This plant species has been included in the Red Book of Vietnam (1996, 2007) and the List of Group IA in Decree 32/2006/ND-CP of the Government of the Socialist Republic of Vietnam.

4. Dosage, how to use

• Depending on the part of the plant, there will be different uses. Usually the leaves are used to make the broth, use the fine powder form of the bark part, etc.
• Dosage is often unstable, can be changed depending on each disease and age of use.
• Normally, a day use Eucalyptus leaves 20 - 30 grams, Eucalyptus 2 - 3 fruits.

Eucalyptus is a rare and endangered tree species. Readers and relatives should not arbitrarily use or listen to experienced remedies. Readers, please visit your doctor to understand your body condition and consult. Please share the article if you find it useful. We look forward to receiving your feedback and interest in other articles. SignsSymptomsList is here to help!

Dr. Du Thi Cam Quynh