Acmella oleracea, also known under its old names Spilanthes oleracea and Spilanthes acmella and commonly referred to as Spilanthes Extract, is a flowering herb in the plant family Asteraceae, also known as toothache plant or paracress as the leaves and flower heads contain an analgesic agent spilanthol used to numb toothache. It is native to the tropics of Brazil, where it is called Jambu, and is grown as an ornamental (and occasionally as a medicinal) in various parts of the world. A small, erect plant, it grows quickly and sends up gold and red flower inflorescences. It is frost-sensitive but perennial in warmer climates. For culinary purposes, small amounts of shredded fresh leaves add a unique flavour to salads.
Contributions by Phyzome, Cacycle, and Beland.