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 spinosa

Quercus stellata is a slow-growing deciduous tree that typically attains a height of around 12 meters. Its leaves are dark green with pronounced, rounded lobes, often giving them a distinctive cruciform shape due to the prominence of the first two lobes. The leaf surface is textured, covered in short, coarse hairs. In the fall, the foliage transforms to a deep gold-bronze hue.

Quercus stellata

Quercus stenophylloides is an evergreen tree that typically grows to approximately 15 meters in height. Its leaves are elongated and narrow, featuring a glossy green surface while the underside is covered in fine white hairs. The acorns develop into a glossy red-brown hue, nestled within a cup that has distinct rings of short bristles.

Quercus stenophylloides

Quercus suber is an evergreen tree that experiences slow growth, primarily cultivated for its bark, the source of cork. As it matures, the bark becomes a textured grey with deep fissures. When bark is harvested, the underlying layer is a rich brick red until new bark emerges. The leaves present a glossy dark green on the upper surface, while the underside is soft and pale. The acorns are elongated and slender, with only a small portion nestled in a coarse cup.

Quercus suber

Quercus suber 'Cambridge'

Quercus suber 'Sopron'

Quercus subspathulata

Quercus texana

Quercus texana 'New Madrid'

Quercus tomentella

Quercus trojana is a medium-sized tree that can reach heights of up to 20 meters. It is semi-evergreen, shedding its leaves primarily during the coldest winters, which may result in a brief deciduous period in northern climates. The leaves exhibit a grey-green hue with small serrations along the margins. Its acorns are notably large, with more than half of their length nestled within a shaggy, grey-green cup.

Quercus trojana

Quercus trojana 'Hemelrijk'

Quercus tuberculata

Quercus tungmaiensis is a sizable semi-evergreen tree, reaching heights of around 20 meters. Its leaves are elongated, with a somewhat leathery texture, typically featuring small serrations on the margins, and they retain a vibrant green hue for much of the year. The acorns produced by this species are elongated and narrower than they are wide, partially surrounded by a scaly cup that is grey-brown in color.

Quercus tungmaiensis

Quercus turbinella

Quercus vacciniifolia

Quercus variabilis

Quercus vaseyana

Quercus velutina is a sizable deciduous tree that can reach heights of up to 25 meters, characterized by a broad, rounded canopy. The young shoots and buds are covered in fine hairs, while mature specimens display a nearly black bark on the outside with a yellowish inner bark. The leaves are large and irregularly lobed, measuring as much as 30 centimeters in length, with a dark green upper surface and a lighter, downy underside featuring tufts in the vein axils. In autumn, the foliage transforms into shades of yellow, red, and brown. The tree produces greenish-yellow flowers, which are succeeded by solitary or paired acorns in the fall.

Quercus velutina

Quercus velutina 'Albertsii'

Quercus velutina 'Golden Dragon'

Quercus velutina 'Habiflax'

Quercus velutina 'Oakridge Walker' is a medium-sized deciduous tree that can reach heights of up to 15 meters. Its foliage features glossy green leaves with a distinctly lobed shape, marked by deep cuts and pointed tips. In the fall, the leaves transition to a golden bronze hue before they drop. The acorns are partially enclosed in a deep cup.

Quercus velutina 'Oakridge Walker'

Quercus velutina 'Rubrifolia'

Quercus vimoriniana

Quercus virginiana

Quercus virginiana 'Fbqv1'

Quercus virginiana 'Fbqv22'

Quercus virginiana 'K-1'

Quercus vulcanica is a sizable, rapidly maturing deciduous tree that can reach heights of up to 30 meters. Its leaves, measuring approximately 12 centimeters in length, are characterized by a long petiole and a deeply lobed structure that extends to the central vein. The leaf edges feature additional lobes towards the tip, creating a lace-like effect. The upper surface of the leaves is a dark green, while the underside presents a lighter green hue, transitioning to yellow-brown in the autumn months. Spring brings inconspicuous flowers, which later develop into 1 to 3 acorns during the fall. These acorns are encased in scaly cups that cover at least half of their length.

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