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common filbert

Scientific Name: Corylus avellana

Family: Betulaceae

Category: Dicot

Growth: Tree, Shrub

Duration: Perennial

Other Names:

       

Common Hazel (Corylus avellana)

Corylus avellana, commonly known as the common hazel, is a familiar shrub or small tree found throughout Europe. Its edible nuts, known as hazelnuts, filberts, or cobnuts, are widely enjoyed.

Common Names

  • Hazel
  • Common Filbert
  • European Filbert
  • Harry Lauder's Walking Stick
  • Corkscrew Hazel
  • Hazelnut

Taxonomy and Nomenclature

  • Scientific Name: Corylus avellana L.
  • Family: Betulaceae
  • Taxonomic Rank: Species
  • Synonyms: Corylus maxima Mill. (sometimes, and the relationship between species can be complex)

Morphology and Growth Habits

  • Typically grows as a shrub reaching 3-8 meters tall, but can sometimes grow into a small tree.
  • Leaves are simple, alternate, and deciduous.
  • Leaf edges are doubly serrated (saw-toothed) and have fuzzy surfaces.
  • Produces a large nut enclosed in a papery involucre.

Distribution and Habitat

  • Native to Europe.
  • Observed along the Springwater Trail east of Rugg Road in Clackamas County, Oregon, indicating its presence in North America as well.

Ecological Role

  • Some varieties of Corylus avellana are considered invasive in certain regions.

Interactions with Other Organisms

  • Susceptible to Eastern filbert blight, caused by the fungus Anisogramma anomala.

Considerations for Pets

  • Leaves are simple, alternate, and deciduous, with saw-toothed edges and very fuzzy surfaces.

Considerations for Children

  • Leaves are simple, alternate, and deciduous, with saw-toothed edges and very fuzzy surfaces.

Resources

  • USDA PLANTS Database (Symbol: COAV80)
  • Invasive Plant Atlas