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Plant Species of the genus Quercus

Information about this genus
Name: Quercus
Cultivation: CULTIVATION: The oaks grow well in deep, alluvial valley soils, or other fertile soils of higher country; only a few of the Mediterranean species are tolerant of poor dry soil. Most enjoy cool moist conditions and are quite frost hardy. Some early pruning may be needed to help establish a single straight trunk. Seeds, sown as soon as ripe in summer or autumn, germinate readily; cultivars and sterile hybrids are usually grafted in late winter or early spring.
Description: This is a large genus of some 600 species, both evergreen and deciduous. The majority are trees, a few are shrubs, widely distributed throughout the Northern Hemisphere. Many are large and impressive trees that live to a great age; their timber has long been valued for ship-building, fine furniture and paneling. Oaks are useful as ornamental landscape trees in parks and large gardens and, provided there is adequate space, as street trees. Their fruits (acorns) are partly enclosed in a cup that may be smooth, scaly, bristly or mossy. The acorns of some species are eaten by humans and animals. All have simple leaves, though often finely and deeply lobed, a few turning to spectacular tones of red or yellow-brown in autumn. Male and female flowers are carried on separate catkins on the same tree, usually in early spring. The abundant male catkins, generally yellowish green, provide the pollen, then drop off; the female catkins, smaller and less numerous, are pollinated by wind or insects and eventually produce the acorns, which may take 1 or 2 years to develop.

Specie Vernacular Zone
acuminata
acutissima 5-10
alba 3-9
alexanderi
anceps
beadlei
bebbiana
beckyae
benderi
bicolor 4-10
bimundorum
borealis
brittonii
bushii
coccinea 2-9
columnaris
deamii
dubia
ellipsoidalis 5-10
exacta
falcata 8-10
fallax
faxonii
fernaldii
fernowii
filialis
fontana
hawkinsiae
hemisphaerica
heterophylla
hillii
houstoniana
humidicola
ilicifolia 8-10
imbricaria 8-10
inaequalis
jackiana
laurifolia 7-10
leana
lowellii
ludoviciana
lyrata 8-10
macrocarpa 4-9
mandanensis
marilandica 5-9
maxima
michauxii 6-10
microcarya
montana
muehlenbergii 5-9
mutabilis
nigra 6-10
nuttallii
obtusa
pagoda cherrybark oak
pagodifolia
palaeolithicola
palmeriana
palustris 3-10
phellos 5-9
porteri
prinoides dwarf chinkapin oak
prinus 3-9
Quercus 3 bebbiana 4-9
Quercus 3 bushii 5-9
Quercus 3 deamii 4-9
Quercus 3 hispanica 6-9
Quercus 3 jackiana 4-9
Quercus 3 leana 5-9
Quercus 3 runcinata 5-9
Quercus 3 turneri 7-10
Quercus acuta 5-10
Quercus agrifolia 8-10
Quercus aliena 5-10
Quercus alnifolia 6-10
Quercus arkansana 7-9
Quercus brantii 7-10
Quercus canariensis 7-10
Quercus castaneifolia 6-10
Quercus cerris 7-10
Quercus chrysolepsis 7-10
Quercus coccifera 7-10
Quercus dalechampii 7-10
Quercus dentata 7-9
Quercus engelmannii 8-10
Quercus faginea 7-10
Quercus frainetto 7-10
Quercus gambelii 4-9
Quercus garryana 5-9
Quercus glandulifera 7-9
Quercus glauca 7-9
Quercus ilex 6-10
Quercus incana 8-10
Quercus infectoria 7-10
Quercus ithaburensis 8-10
Quercus kelloggii 7-10
Quercus laevis 7-9
Quercus libani 7-10
Quercus lobata 9-10
Quercus macranthera 6-10
Quercus mongolica 4-9
Quercus petraea 5-9
Quercus phillyreoides 6-10
Quercus pontica 6-10
Quercus pubescens 8-10
Quercus rugosa 8-11
Quercus suber 8-10
Quercus tomentella 8-11
Quercus variabilis 5-10
Quercus virginiana 7-11
Quercus warburgii 3-10
Quercus wislezenii 8-10
rehderi
richteri
robbinsii
robur 3-10
rubra 3-9
rudkinii
runcinata
saulii
schneckii
schochiana
schuettei
shumardii 5-9
stellata 6-10
subfalcata
succulenta
texana Texas red oak
tridentata
triloba
velutina 3-9
wagneri



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