Corylus avellana Corylaceae
Hazelnut, European Filbert KO-ril-us a-ve-LAH-na
- Deciduous shrub/tree, 12-20 ft (3.7-6 m), rounded crown, erect shoots, suckers. Leaves alternate,
simple, broad, roundish, 7.5-10 cm long. Greenish yellow male flowers (catkins) hang on all winter,
are yellowish as they release pollen in early winter. Female flowers are nearly inconspicuous, the
a leafy bract (involucre), ripens in late summer.
- Sun to part shade.
- Hardy to USDA Zone 4 Native to Europe, north Africa, and western Asia.
- This is the commercial hazelnut, essentially the entire US crop is produced in Oregon.
Orchard in flower in winter.
- Corylus: from korylos, the Greek name of the plant; avellana: of Avella Vecchia, Italy.
- Oregon State Univ. campus: west of Cordley Hall.