What Is a Lapacho Tree?

Characteristics of the Tree

• The name "lapacho" encompasses about a hundred species of tree, all in the genus "Tabebuia." These large, flowering trees are found as landscape plants in many South American cities. Lapacho wood is extremely resistant to insects and disease. As one of the most durable hardwoods in the tropics, it is favored in the construction of buildings, boats and even tools.

  Gardeners and landscapers can grow a species of this tree from seed, "Tabebuia impetiginosa," marketed under the name "Pink Trumpet Tree." This species, which blossoms with pink flowers in the spring, can grow up to about 90 feet but can be kept smaller if desired.

History and Traditional Uses

• The lapacho tree has a well known history of use. Indigenous tribes throughout South America have used the inner bark of the lapacho tree for various medicinal uses, including fungal infections, snakebite, respiratory problems and rheumatism. Many rainforest Indian tribes used the lapacho wood to make hunting bows because they considered this wood to be full of strength and vigor.

Medicinal Uses

• In modern times lapacho, which is usually referred to as "pau d'arco," has been studied extensively for its benefits as an herbal medicine. It has been shown to be effective in treating fungal conditions and is used both externally and internally for ailments such as candida, athlete's foot and nail fungus. Pau d'arco is also used to treat microbial conditions such as infections, fevers, colds and flus. Additionally, it is employed in alternative cancer treatments as numerous animal studies have shown it to have anti-tumor activity.

Preparation and Dosage

• When using lapacho or pau d'arco as an herbal medicine, it is important to be sure that the product is made with the inner bark of the plant, as that is where the active compounds are found. The dried bark can be brewed into a tea, using one-half cup dried bark per quart of water. This method is best for external use, for example hands or feet afflicted with nail fungus can be soaked in the tea. Or a washcloth can be dipped in the tea and applied to affected areas.

  Capsules are the most recommended method for internal use, with a suggested dose of three 300mg capsules per day. Another way to take the herb is as a liquid extract or "tincture." Suggested dosage is 60 drops three times per day of liquid extract from a reputable company such as Gaia Herbs or Herb Pharm.