Botanical Overview
Winter’s Bark (Drimys winteri) belongs to the Winteraceae family. While not among the most extensively documented medicinal plants, this species has recorded uses that warrant attention from researchers and practitioners. This species belongs to the Winteraceae family, a group of flowering plants.

General Description
It is native to the Magellanic and Valdivian temperate forests of Chile and Argentina, where it is a dominant tree in the coastal evergreen forests. It is found below 1,200 m (3,900 ft) between latitude 32° south and Cape Horn at latitude 56°. In its southernmost natural range it can tolerate temperatures down to −20 °C (−4 °F). The plant is renowned for its phenotypic plasticity being able to grow in different sites from “extreme arid zones to wetlands along Chile”. The tree does also grow in places with various types and degrees of competition from other plants.
Geographic Distribution
Winter’s Bark has been recorded in 10 countries and territories worldwide, including Argentina, Brazil, Chile, China, Colombia, and others.
Traditional Uses
Winter’s Bark has been traditionally used for digestive health, metabolic and nutritional health, and immune system support.
Digestive health.
- Dysentery
- Carminative
- Stomachic
For digestive complaints, the herb is typically prepared as a tea or decoction taken before meals. The bitter compounds stimulate digestive secretions and improve nutrient absorption. Some traditions use the powdered root or leaves in small doses as a stomachic tonic.
Metabolic and nutritional health.
- Tonic
Metabolic applications include consuming the plant as a food, fresh juice, or herbal infusion. Regular use supports the body’s natural metabolic processes and nutritional status.
Immune system support.
- Cancer
Immune support involves taking the herb as a decoction or tincture over extended periods. The active compounds stimulate immune cell activity and provide antimicrobial protection.
Active Compounds
Phytochemical research has identified 25 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:
- Alkaloid: nitrogenous compounds with diverse pharmacological activities