The difference between Polygonatum odoratum and Polygonatum odoratum

Polygonatum odoratum is the dried rhizome of Polygonatum odoratum, a perennial herb of the Liliaceae. It was first listed in Shennong Materia Medica and listed as the top grade, formerly known as Trichosanthes. "famous doctors don't record" is called Jianyu, and Hunan is also known as tail ginseng.

Rhizoma Polygonatum was first published in the Records of famous doctors, which is listed as the top grade, and there are many plant sources. to sum up, the commodity can be divided into two kinds: chicken head and ginger. Polygonatum polygonatum is the dry rhizome of Polygonatum polygonatum, a few rehe Polygonatum and narrow leaf Polygonatum, while ginger is the dry rhizome of Polygonatum, Polygonatum and Polygonatum in Liliaceae.

In this paper, the character identification, meridian tropism, functional indications and usage of the two are introduced as follows:

Character identification of medicinal materials

Polygonatum odoratum: the cylindrical shape of this product is slightly flat and slightly curved, and there are no differences. Long 5~20cm, diameter 0.5~1.2cm, the surface is yellowish or yellowish brown, translucent, the link lines are obviously wavy and slightly raised. The quality is hard and brittle, but it becomes soft when exposed to moisture, and it is easy to break. The cross-section is horny, and the color is slightly the same as the outer color, with stickiness. Goods to root thick and uniform, light yellow, the inner residue horny sample is a good product. The slices are irregular round or oblong thick slices, and the section is granular or horny, with white veins scattered, sometimes with space in the center, longitudinal wrinkles around, visible links and round stem scars.

Huang Jing: the classification of commodities can be divided into chicken head yellow essence and ginger-shaped yellow essence.

1. Chicken head Polygonatum: this product is irregular conical or cylindrical, one end is inflated, there are often 1 or several thick and short protuberances or small branches, similar to chicken head, and 1 to 3 stem base scars, similar to corns, long 3~10cm, thick-end 1~2.5cm in diameter, thin-end 5~8cm. The surface is yellowish white to yellowish brown, translucent. The breath is slight, the taste is slightly sweet, sticky.

2. Ginger-shaped Polygonatum: irregular nodules, slightly flattened like ginger, long 3~10cm, wide 2~4cm, thick 1~2cm, yellowish surface, rough, irregular wrinkles, aboveground stem scars are disc-shaped, often sunken. Most of the whisker root scars are verrucous, all evenly distributed. The node is conspicuous, showing a raised wavy ring. The rest is the same as Rhizoma Polygonatum.

The slices of the above two kinds of Rhizoma Polygonatum are irregular thick slices of 2~4mm with wavy ring edges, the former surface is white to yellowish brown, translucent, mostly scattered in vascular bundles, while the latter is yellowish brown, rough, with irregular wrinkles.

Meridian tropism of nature and taste

Polygonatum odoratum: slightly cold, sweet taste, return to the lung, stomach meridian.

Rhizoma Polygonatum: sexual lukewarm, taste sweet, belong to the lung, spleen and kidney meridians.

Function and indications

Polygonatum odoratum has the effect of nourishing yin, moistening dryness, promoting fluid and relieving thirst. It is mainly used for lung and stomach yin injury, lung heat and dry cough, irritable heat and thirst, dry pharynx and so on.

Rhizoma Polygonatum has a nourishing, strong and bacteriostatic effect.

Usage and dosage

Polygonatum odoratum: sliced raw, because the drug power is weak, the dosage is heavy, the decoction is generally 915g, used as a cardiotonic tonic, the dosage can reach 30g / 60g.

The general dosage of the decoction is 9: 30g. 2% of the extract can be used as an topical coating for the treatment of tinea cruris and tinea pedis.