The efficacy and function of blue tree

The traditional Chinese medicine blue tree is already very familiar to most people. But in fact, not many people know the effects and functions of the traditional Chinese medicine blue tree, so let’s talk about it below.

[Other names] Big blue indigo, wood indigo, big indigo leaf, wood indigo, rice wood, isatis root, mountain indigo tree, stagnation, blue wood, ridge knife handle, seven-star tree, big blue wood, wild blue indigo tree, sheep horn juice

[Source] Medicinal material source: the roots, leaves and bark of the blue tree of the Apocynaceae family.

【Original form】 Tree, 8-20m high. Except for the flowers, everything else is glabrous. The whole plant has latex, and the bark is dark gray with lenticels. Leaves opposite; petiole 5-7mm long; leaf blade thin papery, oblong or oblong-lanceolate, 7-12m long, 2.5-5cm wide, apex acuminate to caudate-acuminate, base cuneate, glabrous on both sides; lateral veins 5-9 (rarely 11) on each side, posteriorly showing sewing machine-shaped wrinkles. Cymes terminal; bracts small, calyx short and thick, lobes 5. Shorter than corolla, with ovate glands at inner base; corolla white or light yellow, funnel-shaped, lobes 5, elliptic-oblong, covering to the left; corona split into 25-35 scales, fringed, fused at base; stamens 5. Attached to apex of corolla tube, anthers pubescent; ovary composed of 2 free carpels, flowers filiform, gradually increasing in size upwards, stigma capitate. The two fruits are free, cylindrical, 25-35cm long, and have spotted exocarp. The seeds are linear-lanceolate, 1.5-2cm long, with white silky hairs at the tip, 2-4cm long. The flowering period is from April to August, and the fruiting period is from July to March of the following year.

[Habitat distribution] Ecological environment: Grown in villages, roadsides, sparse forests in mountains, or sunny places in valleys, in moist and fertile land.

[Properties] Identification of properties: The leaves are oblong-elliptical, 7-12cm long, 2.5-5cm wide, gradually pointed at the apex, cuneate at the base, entire, with pinnate reticulate veins, and lateral veins with sewing machine-shaped wrinkles. Slight smell, slightly bitter taste.

【Nature and flavor】 Slightly bitter; slightly astringent; cool in nature; toxic

【Functions and indications】 Clears away heat and detoxifies; stops bleeding and heals sores. Itch in cheeks; snake bites; bleeding from knife wounds; eczema; ulcers

[Usage and Dosage] For internal use: soak in wine and drink in appropriate amount. For external use: take appropriate amount, mash and apply on the affected area or decoct in water for washing.

【Excerpt】 Chinese Materia Medica

In general, the effect of blue tree is quite significant. It is precisely because blue tree has relatively good health-preserving effects that the application of blue tree in health-preserving in daily life can be said to be quite high.