Quercus L.
(oaks)

Subtaxon	Rank	Featured subtaxa	No of images	No of ID refs
Quercus cerris Turkey Oak	Species		23 images	1 ident. refs
Quercus cerris x suber = Q. x crenata Lucombe oak	Species hybrid		18 images
Quercus ilex Holm Oak, Evergreen Oak	Species		5 images	1 ident. refs
Quercus petraea Sessile Oak	Species		30 images	1 ident. refs
Quercus petraea x robur = Q. x rosacea hybrid oak	Species hybrid		8 images	1 ident. refs
Quercus robur Pedunculate Oak	Species		105 images	1 ident. refs
Quercus rubra Red Oak	Species		5 images
[Quercus (native spp)] native oaks	Informal	3 subtaxa	143 images	7 ident. refs

Taxonomic hierarchy:

Genus	Quercus (oaks)
Family	FAGACEAE (forest trees)
Order	FAGALES (forest trees)
Subclass	EU-DICOTS (dicotyledonous flowering plants)
Class	MAGNOLIOPSIDA (flowering plants)
Phylum	TRACHEOPHYTA (vascular plants)
Kingdom	PLANTAE (plants)
Domain	Eukaryota (eukaryotes)
Life	BIOTA (living things)

Quercus is also a member of:
Ectomycorrhizal broadleaved trees and shrubs - ectomycorrhizal or ectotrophic mycorrhizal broadleaved trees and shrubs (via Fagaceae)
Ectomycorrhizal trees and shrubs - ectomycorrhizal or ectotrophic mycorrhizal trees and shrubs (via Ectomycorrhizal broadleaved trees and shrubs)
Broadleaved trees and shrubs - broadleaved trees and shrubs (via Ectomycorrhizal broadleaved trees and shrubs)
Xylophytes - broadleaved trees, shrubs and woody climbers (via Broadleaved trees and shrubs)
Trees and shrubs - trees and shrubs, including conifers (via Ectomycorrhizal trees and shrubs)
Broadleaved trees - broadleaved, frondose or deciduous trees (via Fagales)
Trees - broadleaved and coniferous trees (via Broadleaved trees)
Trees, shrubs, woody and climbing plants - trees, shrubs, subshrubs and climbers, including conifers (via Broadleaved trees)

Quercus (oaks) may be included in identification literature listed under the following higher taxa:

FAGALES
(forest trees)

MAGNOLIOPSIDA
(flowering plants)

TRACHEOPHYTA
(vascular plants)

PLANTAE
(plants)

Eukaryota
(eukaryotes)

BIOTA
(living things)

Xylophytes
(broadleaved trees, shrubs and woody climbers)

Trees and shrubs
(trees and shrubs, including conifers)

Broadleaved trees
(broadleaved, frondose or deciduous trees)

Trees
(broadleaved and coniferous trees)

Trees, shrubs, woody and climbing plants
(trees, shrubs, subshrubs and climbers, including conifers)

NBN (data.nbn.org.uk) has a distribution map for Quercus (oaks)

BioInfo (www.bioinfo.org.uk) has 1,623 host/parasite/foodplant and/or other relationships for Quercus (oaks)

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Unless otherwise expressly stated, all original material on the BioImages website by Malcolm Storey is licensed under the above Creative Commons Licence.

Photographs from other photographers are used with permission but not included under the above CC licence.

Taxonomic hierarchy:

Quercus is also a member of:

BioImages - Virtual Field-Guide (UK)