Toothache Plant
Scientific Name: Acmella oleracea
Category: plant
Brief Description
A small, low-growing herb known for its distinct, button-like yellow and sometimes red-capped flower heads and its numbing, tingling properties when chewed.
Characteristics
Features ovate, green leaves with wavy margins and distinct, round, bright yellow flower heads that resemble little eyeballs. The stems are succulent and branching.
Habitat
Tropical and subtropical regions worldwide; often grown in gardens or as a potted indoor plant in temperate zones.
When to Find It
Blooms continuously throughout the warm summer months or year-round in tropical climates.
Conservation Status
N/A
Ecological Role
Attracts pollinators such as bees and butterflies with its nectar-rich flower heads.
Easily Confused With
Button flowers or small members of the Asteraceae family; distinguished by its unique numbing sensation when the flower head is tasted.
Observation Tips
Observe in garden beds or containers in full sun to partial shade.
Interesting Facts
Contains an active compound called spilanthol, which is responsible for the intense tingling and mild local anesthetic effect used traditionally for toothaches.