Spilanthes (Acmella oleracea)
Annual. Spilanthes is native to South America. It has striking golden, bud-shaped flowers with deep red eyes on glossy green low growing annual plants.Sometimes called "toothache plant" because chewing the leaves and especially the flowers creates an interesting numbing effect. Reputedly enhances the immune system similarly to Echinacea. Leaves can be eaten fresh like cress.