A plant genus of the family BIGNONIACEAE that is a source of lapachol and beta-lapachone.

Synonyms: txid429701 Taheebo Tree Handroanthus impetiginosus txid39256 Tree, Taheebo Tabebuia avellanedae Tabebuia Tabebuia lapacho Trees, Taheebo Tabebuia palmeri Tabebuia impetiginosa Tabebuia rosea Lapacho Trees Pau d'arco Trees, Lapacho Pau d'arcos d'arco, Pau txid429709 Taheebo Trees Tree, Lapacho Lapacho Tree