Botanical Overview Handroanthus impetiginosus (formerly Tabebuia impetiginosa), commonly known as Pau d’Arco, Lapacho, Pink Ipê, or Taheebo, is a member of the Bignoniaceae family native to the tropical forests of South America including Brazil, Paraguay, Argentina, and Bolivia. The inner bark of this deciduous tree is the primary medicinal part used traditionally and in modern…