Quercus includes trees or shrubs that can be either deciduous or evergreen. The leaves may be entire, lobed, or toothed. Flowers are not prominent, but they are succeeded by distinctive acorns. Some species may display notable autumn foliage.

Quercus laevis

Quercus lamellosa

Quercus lanata

Quercus lancifolia

Quercus laurifolia is a semi-evergreen to deciduous tree characterized by its spreading form and rounded crown, along with its deeply ridged bark. The leaves are glossy, oblong to ovate, reaching lengths of up to 10 cm, and are typically entire, although some may exhibit a shallow three-lobed shape. In milder regions, the foliage can persist into winter, sometimes displaying a bronze hue in its youth. The acorns are rounded and grow in shallow cups.

Quercus laurifolia

Quercus laurina

Quercus leucotrichophora

Quercus libani

Quercus lobata

Quercus longinux

Quercus longispica

Quercus look

Quercus lusitanica 'Serratifolia'

Quercus lusitanica Lam.

Quercus lyrata

Quercus lyrata 'Arnold'

Quercus macranthera is a large deciduous tree that reaches heights of up to 25 meters. Its leaves can grow up to 15 centimeters long, featuring regular rounded lobes along the margins. The upper surface of the leaves is dark green, while the underside is grey and covered in fine hairs. In the autumn, the foliage transitions to a dark yellow-brown before shedding.

Quercus macranthera

Quercus macranthera subsp. syspirensis

Quercus macrocarpa is a substantial deciduous tree, reaching heights of up to 25 meters. It features lobed green leaves that transition to yellow-brown in the fall before they drop. The acorns produced by this species can be quite large, measuring as much as 5 centimeters in diameter, and are characterized by a cup that is fringed with long hairs around the edge.

Quercus macrocarpa

Quercus macrocarpa var. macrocarpa

Quercus margarettae

Quercus marilandica is a slowly expanding tree that can grow to approximately 15 meters in height. Its mature bark is characterized by deep fissures. The leaves can reach lengths of up to 18 centimeters and are three-lobed, displaying a glossy, dark green surface while the undersides are covered in fine, yellowish-brown hairs. This species produces inconspicuous flowers in the spring, which are succeeded by small acorns in the fall.

Quercus marilandica

Quercus mexicana is a small to medium-sized deciduous tree, typically reaching heights of up to 10 meters and spreading nearly the same in width. The bark is grey and features a rough, knobby texture reminiscent of an elephant's leg. Its leaves are dark green on the upper surface and lighter green underneath, with smooth margins.

Quercus mexicana

Quercus michauxii

Quercus miquihuanensis

Quercus mohriana

Quercus mongolica

Quercus mongolica subsp. crispula

Quercus monimotricha

Quercus montana

Quercus morii

Quercus muehlenbergii

Quercus muehlenbergii 'Dallas'

Quercus myrsinifolia

Quercus myrtifolia

Quercus nigra is a sizable deciduous tree that can reach heights of up to 25 meters. Its foliage exhibits considerable variation, typically presenting narrow leaves that may feature a mix of lobes and points. As autumn approaches, the leaves turn a yellow-brown hue before dropping in late fall. The acorns are characterized by their shallow cups.

Quercus nigra

Quercus nigra 'Beethoven'

Quercus nigra 'Nyewoodii'

Quercus nigra 'Thierry'

Quercus oblongifolia

Quercus obtusata

Quercus oglethorpensis

Quercus oxyodon

Quercus pacifica

Quercus pagoda

Quercus palmeri

Quercus palustris is a robust large deciduous tree that develops a compact, somewhat drooping crown. Its leaves, which can reach up to 15 cm in length, are deeply lobed and feature fine, hair-like tips. In the fall, the foliage transforms to shades of reddish-brown or vibrant crimson.

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