E-Flora BC: Electronic Atlas of the Flora of British Columbia

Corylus avellana L.
filbert (common filbert; hazelnut)
Betulaceae (Birch family)

Introduction to Vascular Plants

Distribution of Corylus avellana
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Species Information

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Illustration Source: The Illustrated Flora of British Columbia

General:
Deciduous shrub, 1-5 m tall with many stems, densely clumped or spreading by suckers; twigs hairy, glandular.

Leaves:
Alternate, deciduous, elliptic to oval, leaf blades heart-shaped with sharp-pointed tips, doubly saw-toothed, paler below than above, 5-10 cm long, turning yellow in the fall.

Flowers:
Male flowers in catkins appearing before the leaves in spring; female flowers in a very small catkin with protruding red stigmas.

Fruits:
Edible, hard-shelled nuts not completely enclosed by thinly downy, lacerated bractlets, in 2's or 3's at the ends of the branches.

Source: The Illustrated Flora of British Columbia

Key to the Species and Taxonomic Notes

Taxonomic Key to Corylus

1. Twigs sparsely to moderately hairy, sometimes slightly glandular; silicles completely enclosed by bristly bractlets.....................C. cornuta

1. Twigs both hairy and glandular, silicles not completely enclosed by the thinly downy, lacerated bractlets.................................C. avellana

Habitat / Range

Moist meadows and thickets in the lowland zone; rare on Saltspring Island and in the Lower Fraser Valley; introduced from Europe.

Source: The Illustrated Flora of British Columbia

Climate

The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Status Information

Origin Status	Provincial Status	BC List (Red Blue List)	COSEWIC
Exotic	SNA	Exotic	Not Listed

BC Ministry of Environment: BC Species and Ecosystems Explorer, the authoritative source for conservation information in British Columbia.

Taxonomic and Nomenclatural Links

Flora North America treatment for Betulaceae
Flora North America treatment for Corylus avellana
Genetic information (NCBI Taxonomy Database)
International Plant Names Index
Taxonomic Information from the World Flora Online
Integrated Taxonomic Information System

Additional Range and Status Information Links

Burke Museum of Natural History (Washington State records)
CalFlora
Consortium of Pacific Northwest Herbaria records
Jepson Interchange
NatureServe Explorer
USDA

Additional Photo Sources

UBC Herbarium Scanned Collection Record
Images From CalPhoto
UT Austin's Native Plant Database
Google Image Search
Flickr Image Search

General References

Google Scholar Search
Family References
General Botanical References for BC

Recommended citation: Author, Date. Page title. In Klinkenberg, Brian. (Editor) 2020. E-Flora BC: Electronic Atlas of the Plants of British Columbia [eflora.bc.ca]. Lab for Advanced Spatial Analysis, Department of Geography, University of British Columbia, Vancouver. [Accessed: 2024-05-17 4:37:54 AM ]

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