Acmella paniculata

Acmella paniculata, also known as "paracress" or "toothache plant," is a flowering plant in the family Asteraceae. It's a perennial herb native to tropical regions of South America, and it has been widely cultivated and naturalized in various tropical and subtropical areas around the world. It’s particularly known for its medicinal properties and its unique, tingling sensation when chewed.

Acmella paniculata typically has small, yellow flowers with a distinct button shape. The leaves are green, ovate, and serrated. The plant contains a compound called spilanthol, which is known for its analgesic and anti-inflammatory effects. This makes it popular for use in treating toothaches and oral discomfort, giving it the nickname "toothache plant."

Acmella paniculata has been used in traditional medicine to relieve toothaches, sore throats, and other mouth-related ailments. The plant’s leaves and flowers are often chewed or used in tinctures to provide temporary pain relief. In some cultures, it’s also used as a culinary herb, adding a unique flavor and tingling sensation to dishes. Beyond oral applications, the plant is also studied for its potential antimicrobial, diuretic, and antioxidant properties.