Category
page 1Quercus
Q12004
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, with some 500 species, both deciduous and evergreen. Fossil oaks date back to the Middle Eocene. Molecular phylogeny shows that the genus is divided into Old World and New World clades, but many oak species hybridise freely, making the genus's history difficult to resolve.
Quercus robur
species of plant
acorn
thumb|English oak acorn
thumb|Acorns of the willow oak in South Carolina (from small to large, counterclockwise from center): Q. phellos (willow oak), Q. falcata (southern red oak; top right), Q. alba (white oak), and Q. coccinea (scarlet oak). Scale bar at upper right is 1 cm.
Q156137
species of plant
Quercus petraea
species of oak
cork
material derived from the cork oak
Quercus ilex
Oak tree species native to the Mediterranean
Quercus cerris
species of plant
Quercus rubra
species of plant
Quercus pubescens
species of plant
Quercus coccifera
species of plant
Q161253
species of plant
Q469555
species of plant
Quercus frainetto
species of plant
Quercus dentata
species of plant
Quercus pyrenaica
species of plant
Quercus faginea
species of plant
Quercus macranthera
species of plant
Quercus velutina
tree species
Quercus pontica
species of plant
Quercus acutissima
species of plant
Quercus infectoria
species of plant
Quercus macrocarpa
species of oak tree
Quercus bicolor
species of plant
Quercus canariensis
species of plant
Quercus mongolica
species of plant
Quercus falcata
Species of flowering plant in the beech and oak family Fagaceae
Quercus variabilis
species of plant
Quercus nigra
species of plant
Quercus trojana
species of plant
Quercus coccinea
species of plant
Quercus libani
species of plant
Quercus glauca
species of plant
Q1193791
species of plant
Quercus castaneifolia
species of plant
Quercus virginiana
species of plant
Quercus kelloggii
California black oak (species of plant)
Quercus garryana
species of plant
Quercus myrsinifolia
species of plant
Quercus stellata
species of plant
Quercus phellos
species of oak
Quercus lusitanica
species of plant
Quercus montana
species of plant
Quercus aliena
species of plant
Quercus acuta
species of plant
Quercus michauxii
species of plant
Quercus agrifolia
species of plant
Quercus douglasii
species of plant
Quercus engelmannii
species of plant
Quercus shumardii
species of plant
Quercus arizonica
species of plant
Quercus imbricaria
species of plant
Quercus marilandica
species of plant
Quercus chrysolepis
species of plant
list of Quercus species
Wikimedia list article
Quercus gambelii
species of plant
Quercus lamellosa
species of plant
Quercus acerifolia (E.J. Palmer) Stoynoff & W.J. Hess
species of plant
Quercus muehlenbergii
species of plant
Quercus lyrata
species of plant