Scientific name is Huandonghua, it has the effect of moistening the lungs and lowering the qi, resolving phlegm and relieving cough, which can be used for cough, asthma, laboring cough and coughing up blood and so on.

Its pharmacology has a role:

1, suppressing cough, expectorant and asthma effect.

2, respiratory excitation.

3, action on the cardiovascular system.

4, effects on the hemodynamics of animals: increase peripheral resistance, strong contraction of blood pressure.

5, Anti-platelet activating factor effect.

Expanded information:

Hypericum vulgare is born on the sides of sunny and warmer ditches. Distributed in North China, Northwest China and Jiangxi, Hubei, Hunan and other places, in December or before the ground freezes when the flowers are not yet out of the ground when the digging, remove the pedicel and sediment, shade dry.

It is oblong rod-shaped. Single or 2~3 basal consecutive, 1~2.5cm long, 0.5~1cm in diameter, thicker at the upper end, the lower end tapering or with a short pedicel, the outside is covered with a majority of fishscale-like bracts. The outer surface of the bracts is purplish red or light red, and the inner surface is densely covered with white flocculent hairs. The body is light, and white hairs can be seen after tearing. Aromatic, slightly bitter and pungent flavor.

It is pungent, warm and moist, slightly bitter and descending, warm and moist, not dry, specialized in the lung meridian. It is good at moistening the lungs and lowering the qi, resolving phlegm and relieving coughs, and can be used for all coughs, regardless of external or internal injuries, and is most suitable for cold coughs.

Baidu Encyclopedia - Flos Daturae