Handroanthus impetiginosus, is a native tree of family Bignoniaceae of the Americas, distributed from northern Mexico south to northern Argentina. Lapacho is the national tree of Paraguay, and it is also a common tree in Argentina's northeastern region, as well as in southeastern Bolivia.

It is a conspicuous and well-known species with a long history of human use. Consequently, it has a range of local names: ipê-cavatã, ipê-comum, ipê-reto, ipê-rosa, ipê-roxo-damata, lapacho negro, pau d'arco-roxo, peúva or piúva. The timber is sometimes traded as "Brazilwood".

It is also used as a honey plant, and widely planted as ornamental tree in landscaping gardens, public squares and boulevards due to its impressive and colorful appearance as it flowers. Well-known and popular, it is also planted as a street tree in cities of many countries such as India, like in Bangalore.

The inner bark of Handroanthus impetiginosus is used in traditional medicine. It is dried, shredded, and then boiled, making a bitter brownish-colored tea known as lapacho or taheebo. The unpleasant taste of the extract is lessened when taken in pill form, or as tinctures. Lapacho bark is typically used during flu and cold season and for easing smoker's cough.

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