Sterculia scaphigera is a deciduous

Deciduous

Deciduous means "falling off at maturity" or "tending to fall off", and is typically used in reference to trees or shrubs that lose their leaves seasonally, and to the shedding of other plant structures such as petals after flowering or fruit when ripe...

 tropical nut

Nut (fruit)

A nut is a hard-shelled fruit of some plants having an indehiscent seed. While a wide variety of dried seeds and fruits are called nuts in English, only a certain number of them are considered by biologists to be true nuts...

-bearing tree of genus Sterculia

Sterculia

Sterculia is a genus of flowering plants in the mallow family, Malvaceae. It was previously placed in the now obsolete Sterculiaceae. Members of the genus are colloquially known as tropical chestnuts...

. Seeds of this plant are known as Pang Da Hai in Chinese-speaking countries and are used as herbal remedies in Indonesian and Chinese medicine. Beverages brewed from S. scaphigera seeds have the consistency of weak tea or higher, and are often drunk together with the boiled pulp of the seed. They are traditionally taken as a restorative to treat loss of the voice

Human voice

The human voice consists of sound made by a human being using the vocal folds for talking, singing, laughing, crying, screaming, etc. Its frequency ranges from about 60 to 7000 Hz. The human voice is specifically that part of human sound production in which the vocal folds are the primary...

 from the common cold

Common cold

The common cold is a viral infectious disease of the upper respiratory system, caused primarily by rhinoviruses and coronaviruses. Common symptoms include a cough, sore throat, runny nose, and fever...

, flu, laryngitis

Laryngitis

Laryngitis is an inflammation of the larynx. It causes hoarse voice or the complete loss of the voice because of irritation to the vocal folds . Dysphonia is the medical term for a vocal disorder, of which laryngitis is one cause....

, and for this reason are a popular refreshment served at Karaoke

Karaoke

is a form of interactive entertainment or video game in which amateur singers sing along with recorded music using a microphone and public address system. The music is typically a well-known pop song minus the lead vocal. Lyrics are usually displayed on a video screen, along with a moving symbol,...

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