What (who) is Quercus systems - definition
SPECIES OF PLANT
English oak; Common oak; Pedunculate oak; English Oak; Quercus pedunculata; Penduculate oak; Pedunculate Oak; Quercus rober; Quercus robor; Q. robur; Quercus abbreviata; Quercus acutiloba; Quercus aesculus; Quercus aestivalis; Quercus afghanistanensis; Quercus altissima; Quercus arenaria; Quercus argentea; Quercus asterotricha; Quercus atropurpurea; Quercus atrosanguinea; Quercus atrovirens; Quercus auzin; Quercus avellanoides; Quercus axillaris; Quercus bedoi; Quercus bellogradensis; Quercus brachycarpa; Quercus brevipes; Quercus brutia; Quercus bruttia; Quercus castanoides; Quercus commiserata; Quercus comptoniifolia; Quercus concordia; Quercus condensata; Quercus coriifolia; Quercus crispa; Quercus cunisecta; Quercus cuprea; Quercus cupressoides; Quercus cylindracea; Quercus dissecta; Quercus erucifolia; Quercus ettingeri; Quercus extensa; Quercus falkenbergensis; Quercus farinosa; Quercus fastigiata; Quercus femina; Quercus fennessii; Quercus filicifolia; Quercus filipendula; Quercus foemida; Quercus fructipendula; Quercus geltowiensis; Quercus germanica; Quercus haas; Quercus hentzei; Quercus horizontalis; Quercus hyemalis; Quercus imeretina; Quercus kurdica; Quercus laciniata; Quercus lasistan; Quercus longiglans; Quercus longipedunculata; Quercus longipes; Quercus louettii; Quercus lucorum; Quercus malacophylla; Quercus mestensis; Quercus microcarpa; Quercus monorensis; Quercus nigricans; Quercus ochracea; Quercus paleacea; Quercus palmata; Quercus parmenteria; Quercus pectinata; Quercus pedemontana; Quercus pedunculiflora; Quercus pendula; Quercus pendulina; Quercus pilosa; Quercus pinnatipartita; Quercus pseudopedunculata; Quercus pseudoschorochensis; Quercus pseudosessilis; Quercus pseudotscharakensis; Quercus pulverulenta; Quercus pyramidalis; Quercus racemosa; Quercus rubens; Quercus rubicunda; Quercus rumelica; Quercus scolopendrifolia; Quercus sieboldii; Quercus speciensis; Quercus subvelutina; Quercus svecica; Quercus tardiflora; Quercus tennesi; Quercus tetracarpa; Quercus thomasii; Quercus tozzae; Quercus turbinata; Quercus viminalis; Quercus virgata; Quercus vulgaris; Quercus welandii; European oak
![The oak in the coat of arms of [[Gornji Milanovac]], [[Serbia]]](https://commons.wikimedia.org/wiki/Special:FilePath/Gornji-milanovac-grb.png?width=200 "The oak in the coat of arms of [[Gornji Milanovac]], [[Serbia]]")
Quercus × rosacea
Quercus × rosacea (or Quercus rosacea), is a naturally occurring hybrid species of oak native to Europe. They are the offspring of sessile oak, Quercus petraea, and common oak, Quercus robur, found where their ranges overlap.
Quercus × turneri
Quercus × turneri (or Quercus turneri), known as Turner's oak, is a hybrid species of white oak native to Spain. It is a naturally occurring hybrid of holm oak (Quercus ilex) and pedunculate oak (Quercus robur), found where their ranges overlap, but was first described from cultivation.
Quercus asymmetrica
Quercus asymmetrica is the accepted name of an endemic oak tree species in the Asian sub-genus of 'ring-cupped oaks' and the family Fagaceae. It is found in China (specifically, Guangxi Province and Hainan Province, where it is called 托盘青冈 tuo pan qing gang) and northern Vietnam.
Wikipedia
Quercus robur
Quercus robur, the pedunculate oak, is a species of flowering plant in the beech and oak family, Fagaceae. It is a large tree, native to most of Europe and western Asia, and is widely cultivated in other temperate regions. It grows on circumneutral soils in the lowlands and is notable for its value to natural ecosystems, supporting a very wide diversity of herbivorous insects and other pests, predators and pathogens.
