Botanical Overview
American Filbert (Corylus americana) belongs to the Betulaceae family. Limited but reliable traditional records indicate this plant has recognized medicinal applications in one or more healing traditions. The birch family (Betulaceae) includes trees and shrubs with simple, alternate leaves with serrated margins and prominent stipules. The flowers are arranged in catkins, and the fruits are small nuts or samaras. The bark of many species contains phenolic compounds with antiseptic properties.

General Description
Corylus americana, the American hazelnut or American hazel, is a species of deciduous shrub in the genus Corylus, native to the eastern and central United States and extreme southern parts of eastern and central Canada.
Family Context
The Betulaceae family is widely distributed in the Northern Hemisphere. Notable medicinal members include:
- Alnus rubra — 20 documented uses
- Betula alba — 17 documented uses
- Cherry Birch — 16 documented uses
- Black Alder — 10 documented uses
Geographic Distribution
American Filbert has been recorded in 10 countries and territories worldwide, including Armenia, Austria, Canada, Denmark, Estonia, and others.
Traditional Uses
American Filbert has been traditionally used for immune system support.
Immune system support.
- Tumor
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 5 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:
- Phenolic: antioxidant compounds that neutralize free radicals