Botanical Overview
Pau D’Arco (Tabebuia heptaphylla) is a species in the Bignoniaceae family. This species belongs to the Bignoniaceae family, a group of flowering plants. Although comprehensive ethnobotanical records are limited, phytochemical studies have identified 30 compounds in this species, suggesting potential medicinal value.

General Description
It grows in the high forest watershed of the Paraná River, Paraguay River and Uruguay River. It has a limited distribution, almost exclusively inhabiting low lands with wet and deep soils, where it forms part of the upper layer of tree cover.
Family Context
The Bignoniaceae family is widely distributed. Notable medicinal members include:
- Yellow Elder — 18 documented uses
- Jicaro — 15 documented uses
- Indian bean — 7 documented uses
- Spanish oak — 3 documented uses
Active Compounds
Phytochemical research has identified 30 compounds in this species, including a diverse array of phytochemical classes (see the Complete Chemical Inventory below for the full list).
The identified compounds include the following categories:
- Sterol: cholesterol-like compounds with anti-inflammatory properties
Research Status
Although this species has documented phytochemical constituents, its ethnobotanical and clinical documentation remains incomplete. Additional phytochemical investigation could identify novel bioactive compounds in this plant.