Corylus sp.
Hazelnut, Hazelnut
Family: Betulaceae · Type: Shrub · Native
Corylus sp. (Hazelnut) is a native California shrub in the Betulaceae family.
How to tell it apart
vs Alnus: Corylus produces 1-2 nuts in papery husks; Alnus produces tiny winged seeds from persistent woody cone-like catkins.; vs Holodiscus: Corylus has large heart-shaped leaves and nuts; Holodiscus has small lobed leaves and tiny dry capsules in cascading clusters.; vs Sambucus: Corylus has simple alternate leaves and nuts in husks; Sambucus has opposite compound leaves and juicy berry clusters.; vs Rubus: Corylus has simple leaves and nuts; Rubus has compound leaves (or simple lobed) and aggregate berry fruits.; vs Ulmus: Corylus has lopsided heart-shaped leaves and nuts in husks; Ulmus has asymmetric oval leaves and flat papery winged fruits.
Frequently asked questions
Is Corylus sp. native to California?
Yes. Corylus sp. is native to California (recorded as native).
What plant family does Corylus sp. belong to?
Corylus sp. is in the Betulaceae family, genus Corylus.
Related species
Other California species in the same genus, family, or bioregion.
Sources: Jepson eFlora · CalPhotos
Last updated 2026-04-14
Data from The California Species Project — 14,000+ California species with verified data from CNPS, CDFW, USFWS, Cal-IPC, and more.