When reading this site, you may want to purchase the herb in question, and perhaps even wish to grow it on your own. What we call Pau d’Arco is actually retrieved from the inner bark of the Tabebuia Avellanedae or Tabebuia Impetiginosa. If you’re hailing from the United States, then growing it might not be an easy task, although in the southern area of Florida it might occur.
Continental South America is a major area for growth of Tabebuia. also ranges to the islands of Hispanola (the Dominican Republic and Haiti) and Cuba, as well as north into Mexico. Tabebuia is a neotropical genus with approximately 1000 species, hailing from the tribe Tecomeae of the family Bignoniaceae. In its background, Pau d’Arco has been used for centuries by the Indio tribes of South America, as well as the ancient Incas and Aztecs.