Common Filbert, European Hazel, European Hazelnut, Filbert, Hazelnut
Corylus avellana
Male catkins of common filbert as seen along the Springwater Trail east of Gresham, OR..........February 3, 2012.
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Close-ups of the male catkins in flower and a lateral bud of common filbert as seen along the Springwater Trail east of Rugg Road in Clackamas County, Oregon.........January 30, 2012. The clusters contain two to five, or occasionally six catkins in this species. The similar California filbert generally has one or two catkins per cluster.
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Female flowers (see cluster of red stigmas at the base of the male catkins) of common filbert as seen along the Springwater Trail east of Gresham, OR..........February 3, 2012.
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Common filbert as seen in bloom at left along the Springwater Trail east of Rugg Road in Clackamas County, Oregon........January 30, 2012. The photo at right shows the male catkins and female flowers of common filbert as seen along the Springwater Trail between Linneman Junction and Powell Butte, Gresham, OR.......February 6, 2018..
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Close-ups of the male catkins (as they begin to open) and lateral and terminal buds of the common filbert as seen along the Springwater Trail near Powell Butte in west Gresham, Oregon........January 3, 2012.
The paired male catkins of common filbert as seen
along the Springwater Trail east of Main City Park in Gresham, Oregon........January 7, 2020.
Paul Slichter