The resilient North American shrub with a beak and a 7,000-year history

Food & Drink · Published 4 October 2026 Swipe more like this →

In short: Meet Corylus cornuta, the beaked hazelnut. Capable of surviving extreme -50 °C temperatures, this hardy shrub plays a vital role in North American ecosystems, serving as a critical food backup for squirrels and a cornerstone of indigenous cultivation for millennia.

The beaked hazelnut, or Corylus cornuta, is a deciduous shrub found across much of North America. It is most notable for its unique fruit: a spherical nut encased in a husk featuring a tubular, 2 to 4 cm extension that resembles a beak. While the nuts are a nutritious food source, the husk contains tiny filaments that can irritate the skin upon contact.

The species is divided into two primary varieties. The Eastern beaked hazel (var. cornuta) typically grows between 4 and 6 meters tall, with a longer beak of 3 cm or more. The Western beaked hazel (var. californica), also known as the California hazelnut, can reach much larger heights of up to 15 meters. This western variety is particularly significant for its potential resistance to Eastern filbert blight and its historical importance to the Concow tribe, who called it gōm'-he'-ni.

Beyond its botanical interest, the shrub has deep cultural and ecological roots. Indigenous groups, including the Gitxsan, Tsimshian, and Nisga'a, have cultivated the plant for at least 7,000 years. Native Americans utilized the sprouts for crafting baskets, fish traps, and baby carriers, and used the nuts as a valuable trade good—even bartering with the Lewis and Clark expedition. Ecologically, the plant acts as a vital safety net; during acorn crop failures, species like Douglas squirrels and chipmunks rely on these nuts. While squirrels may only distribute them within 90 meters, birds like the blue jay and Steller's jay help spread the species over much greater distances.

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