Uncaria gambir is a tropical vine native to Southeast Asia, particularly found in countries like Indonesia and Malaysia. It belongs to the Rubiaceae family and is known for its medicinal properties. The plant produces a resin that has been traditionally used for its astringent and anti-inflammatory effects. The leaves of Uncaria gambir are often harvested and processed to create a powder or extract. This substance is commonly used in traditional medicine and is also a key ingredient in some herbal products. Additionally, it has applications in the production of certain types of dyes and as a natural remedy for various ailments.