Acmella oleracea

Common name: Toothache plant

Other common names: Electric daisy, Eyeball plant, Para cress, Szechuan buttons

Names in non-English languages: French


Toothache Plant is a medicinal plant originating from South America, its natural range stretching from Amazonia to Southern Brazil.

A perennial herb,



Health use

When chewed, the flowers and leaves increase salivation and have a numbing effect on the mucus membranes of the mouth. They have long been used among the indigenous people of Amazonia to stimulate appetite and to treat various mouth and throat ailments, most notably toothache.


Grows naturally

How to grow

New plants are usually started from

Problem features

None known

Where it will grow



  • Burdock, G.A. 2010, Fenaroli's Handbook of Flavor Ingredients, 6th ed, CRC Press: Boca Raton, Florida

  • DeFilipps, R.A., Maina, S.L. and Crepin, J., 2004, Medicinal plants of the Guianas (Guyana, Surinam, French Guiana). Department of Botany, National Museum of Natural History, Smithsonian Institution, Washington, D.C.

  • Grubben, G.J.H. & Denton, O.A. (Editors) 2004, Plant Resources of Tropical Africa, Volume 2 : Vegetables, PROTA Foundation, Backhuys Publishers, Leiden

  • Mors, W. B. & Rizzini, C. T. & DeFilipps, R. A. & Pereira, N. A. 2000, Medicinal plants of Brazil, Reference Publications, Algonac, Michigan

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