Learn why oak trees (genus Quercus) are biodiversity champions, supporting thousands of species worldwide. From fungi to birds, discover how these trees build ecosystems and what they tell us about nature’s resilience.

Your complete guide to oak trees -- varieties, planting tips, pruning, and care for these iconic hardwoods. Browse oaks for sale at Nature Hills Nursery.

Almost a third of oak species are threatened with extinction due to climate change, invasive pests, and habitat loss. In culture, the oak tree is a symbol of strength and serves as the national tree of many countries. In Indo-European and related religions, the oak is associated with thunder gods.

Oak, genus of about 450 species of trees and shrubs in the beech family (Fagaceae), distributed throughout the north temperate zone and at high altitudes in the tropics. Oak species are characterized by alternate, simple, deciduous or evergreen leaves with lobed, toothed, or entire margins.

Oak Harbor Freight Lines Inc (OHFL) is a highly respected leading west regional LTL carrier serving points throughout the States of Arizona, California, Idaho, Nevada, Oregon and Washington. With strategic partners Oak Harbor offers services throughout the United States and Canada for all your logistics and shipping needs.

A visual identification guide to oak trees, including pictures of oak leaves, bark, and acorns to assist you in identifying the correct type of oak tree.

To plant an oak tree successfully in your yard, here's what you should know about the different types, how they grow, and what they offer to both your landscape and the larger environment.