Open Directory - Science: Biology: Flora and Fauna: Plantae: Magnoliophyta: Magnoliopsida: Betulaceae

Betulaceae - Describes the distinguishing characteristics of the birch family, comprising 6 genera.
Betulaceae - Botanical description of this family of trees and shrubs with technical drawings of Betula and Alnus.

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Last update: Saturday, October 20, 2007 5:39:24 AM EDT - edit

Open Directory - Science: Biology: Flora and Fauna: Plantae: Magnoliophyta: Magnoliopsida: Betulaceae: Corylus

Corylus americana (American Hazel) - Describes physical characteristics and provides photos of leaf, fruit, flower, bark, and twig.
Corylus avellana - Images of foliage and catkins.
Corylus cornuta - Distribution, occurrence, botanical and ecological characteristics, value, use and fire ecology of the California hazlenut.
Corylus cornuta (Beaked Hazel) - Tree identification fact sheet with photos of the leaf, flower, fruit, twig, bark and form.
Hazel: Corylus avellana - Photographs of this tree, its leaves, nuts and catkins.

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Last update: Friday, December 3, 2010 8:53:17 PM EST - edit