An oak is a hardwood tree or shrub in the genus Quercus of the beech family. They have spirally arranged leaves, often with lobed edges, and a nut called an acorn, borne within a cup. The genus is widely distributed in the Northern Hemisphere; it includes some 500 species, both deciduous and evergreen. Fossil oaks date back to the Middle Eocene.

2023年11月2日 · 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.

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2023年9月23日 · Known as forest monarchs, oak trees (Quercus spp.) symbolize resilience and sustainability. Over 500 oak tree species belongs to the Quercus genus, sharing a family with beech and chestnut in the Fagaceae family. Their forms vary as trees or shrubs, showcasing a range of deciduous or evergreen leaves.

Quercus macrocarpa, the bur oak or burr oak, is a species of oak tree native to eastern North America. It is in the white oak section, Quercus sect. Quercus, and is also called mossycup oak, mossycup white oak, blue oak, or scrub oak.

2025年3月6日 · Learn to identify a few of the more common oak species based on their bark, leaves, and other characteristics. In-depth descriptions and bark/leaf photos of each species appear below in the order they are presented in this table. The tree species listed in this section are white oaks that are common in the US.

2025年3月19日 · 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.

2023年1月19日 · Oaks (Quercus) come in many shapes and sizes, and you'll even find a few evergreens in the mix. Whether you are looking for the perfect tree for your landscape or want to learn to identify the different types of oak trees, this article can help. There are dozens of oak tree varieties in North America.

2024年7月3日 · Read on for facts about oak trees, including common species, how to identify oaks by their leaf shape, planting tips, and where you can see the longest-living oak tree in America. An oak tree...

OAK翻译：橡树，栎树;橡木，栎木。 了解更多。