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 'Qnstg'

Quercus 'Qssth'

Quercus 'Tromp Deerpon'

Quercus 'Vilmoriana'

Quercus (Pondaim Group) 'Pondaim Giant'

Quercus (_macrocarpa_ x _muehlenbergii_ x _robur_)

Quercus (_macrocarpa_ x _robur_ x _virginiana_)

Quercus Pondaim Group is a unique, compact deciduous tree characterized by its rounded form and dense growth habit. It features sizable, lustrous dark green foliage that transforms into vibrant red and orange hues during the fall. This cultivar is a hybrid of Quercus pontica and Quercus dentata.

Quercus Pondaim Group

Quercus acerifolia

Quercus acherdophylla

Quercus acrodonta

Quercus acuta

Quercus acutifolia

Quercus acutissima

Quercus acutissima 'Gobbler'

Quercus acutissima subsp. kingii

Quercus afares

Quercus aff. acuta

Quercus aff. agrifolia

Quercus aff. alnifolia

Quercus aff. canariensis

Quercus aff. coccifera

Quercus aff. coccinea

Quercus aff. dentata

Quercus aff. faginea

Quercus aff. glauca

Quercus aff. lusitanica

Quercus aff. macranthera

Quercus aff. myrsinifolia

Quercus aff. petraea

Quercus aff. phellos

Quercus aff. rubra

Quercus aff. salicina

Quercus affinis is a robust evergreen tree that can reach heights of up to 20 meters. It has a narrow, upright growth form and features dark green leaves with a toothed margin. The young branches display a slender appearance, occasionally exhibiting a bronze tint on the leaves. In spring, the tree produces male catkins alongside female flowers, which are succeeded by small, rounded acorns measuring up to 1.5 centimeters in length during the autumn months.

Quercus affinis

Quercus agrifolia is an evergreen tree that can grow to a height of 12 meters. It features a wide, rounded crown supported by spreading branches and a thick trunk covered in smooth black bark that develops a rough texture as it matures. The leaves are dark green, shiny, and rigid, with an oval to rounded shape measuring up to 5 centimeters long; they are characterized by spine-tipped edges and short petioles. The tree produces cone-shaped acorns, reaching up to 2.5 centimeters in length, which mature within their first year.

Quercus agrifolia

Quercus alba, commonly known as the white oak, is a robust deciduous tree characterized by a youthful pyramidal form that evolves into a broader, rounded canopy as it ages. The bark displays a grayish-white hue, while small, inconspicuous catkins emerge in spring before the leaves. New foliage begins as pink, transitioning to dark green throughout the summer, and ultimately takes on a reddish-brown shade in the fall. In autumn, brown acorns develop, adding to the tree’s seasonal interest.

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