Botanical Overview
Cat’s Claw (Uncaria tomentosa) is a species in the Pedaliaceae family. This species belongs to the Pedaliaceae 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 is known as cat’s claw or uña de gato in Spanish because of its claw-shaped thorns. The plant root bark is used in herbalism for a variety of ailments, and is sold as a dietary supplement. There is no high-quality clinical evidence that it has any benefit for treating human diseases.
Family Context
The Pedaliaceae family is widely distributed. Notable medicinal members include:
- Sesame — 69 documented uses
- Devil’s Claw — 6 documented uses
- Cat’s Claw — 1 documented uses
Geographic Distribution
Cat’s Claw has been recorded in 10 countries and territories worldwide, including Bolivia, Brazil, Belize, Colombia, Costa Rica, and others.
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:
- Flavonoid: antioxidant compounds that protect cells from oxidative damage
- Phenolic: antioxidant compounds that neutralize free radicals
- 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.