[Hazelnuts & Filberts: The Genus Corylus in Mt. Adams Country]

California Hazel, California Hazelnut

Corylus cornuta ssp. californica

Synonyms: Corylus californica, Corylus cornuta var. californica, Corylus cornuta var. glandulosa, Corylus rostrata var. californica, Corylus rostrata var. tracyi

California Hazel, California Hazelnut: Corylus cornuta var. californica (Synonyms: Corylus californica, Corylus cornuta ssp. californica, Corylus cornuta var. glandulosa, Corylus rostrata var. californica, Corylus rostrata var. tracyi)

The photo above shows the double involucre of the wild filbert or hazelnut as seen along Road K6000 just above Hellroaring Ditch on the southeastern flanks of Mt. Adams...........June 12, 2005. The nut develops in the broad sac at the base of the involucre.

Leaf of California Hazel, California Hazelnut: Corylus cornuta var. californica (Synonyms: Corylus californica, Corylus cornuta ssp. californica, Corylus cornuta var. glandulosa, Corylus rostrata var. californica, Corylus rostrata var. tracyi)

The photo above shows a close-up of the leaf of filbert as seen at Snowking SnoPark along forest road #82.........May 28, 2005. Note the pinnate venation on the simple leaf blade and numerous serrations along the leaf margin. This species may sometimes be misidentified as an alder.

Leaf and fruit of California Hazel, California Hazelnut: Corylus cornuta var. californica (Synonyms: Corylus californica, Corylus cornuta ssp. californica, Corylus cornuta var. glandulosa, Corylus rostrata var. californica, Corylus rostrata var. tracyi)

The photo above shows a leaf and involucre of the wild filbert or hazelnut as seen along Road K6000 just above Hellroaring Ditch on the southeastern flanks of Mt. Adams..........June 12, 2005.

Paul Slichter