Chinese Name: Pang da hai
Pharmaceutical name: Semen Sterculiae Scaphigerae
Botanical name: Sterculia scaphigera Wall, Sterculia lychnophora Hance
Pron. in Japanese: bantaikai
Pron. in Korean: pandaehae
Pron. in Cantonese:pun4 daai6 hoi2
Common Name: boat sterculia seed
Distribution: mainly in Thailand, Cambodia, Indonesia, Vietnam, India and Guangdong province, Hainan province of China.
Properties (characteristics): sweet, cold
Channels (meridians) entered: large intestine, lung
Medical functions:

1.constricting the smooth muscles of blood vessels

2.improving the inflammation of the mucous

3.lessening the spastic pain

4.the water extract of pang da hai can promote the movement of the intestine and create a mild laxative effect. The effect of the seed is  the strongest.

Actions & Indications: acute conjunctivitis, dry coughs, pain in the throat, coarse voice, vomiting blood, nose bleeding, dry and hard stool, hemorrhoids, heat type of tooth ache.

Chemical ingredients: bassorin, sterculin, arabinose, galactose, Galacturonic acid.

Preparation

3 to 5 pieces one day. Rinse tea cup and teapot with hot water. Use about 2 teaspoons for every 500ml of water. Infuse in hot water at 90℃ to 95℃ for 2 to 4 minutes for the first and second brewing. Gradually increase steeping time and temperature for subsequent brewing.