Biology 130
Corylus spp.; hazelnut
[Betulaceae]
Deciduous shrubs with simple, doubly-toothed, deciduous leaves.
Staminate catkins start to develop in the fall, but shed their
pollen the following spring.
Fruit is a nut surrounded by conspicuous leafy bracts.
Two species are common in Wisconsin:
C. Americana (American hazelnut) and
C. cornuta (beaked
hazelnut) are typically found in open woodlands, roadsides and
fencerows.
[088]
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