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A lone oak tree isolated against white.
Oak leaf with galls of Gall wasp, close-up.
Macro  - Forest - Europe, Romania, Suceava region
An oak is a tree or shrub in the genus Quercus. Oaks have spirally arranged leaves, with lobate margins in many species; some have serrated leaves or entire leaves with smooth margins. The fruit is a nut called an acorn or oak nut borne in a cup-like structure known as a cupule; each acorn contains one seed (rarely two or three) and takes 6–18 months to mature, depending on their species.
green leaves eaten by pest caterpillars isolated white background
Oak Tree
flower collect bee day cherry
Red beetle on white flower. Lygistopterus sanguineus
Close up of acorns on a tree
oak tree branch with acorns
The flower buds of the holly maple are blooming (lat. Acer platanoides). Holly maple is a woody plant species of the genus Maple (Acer) of the Sapindaceae family.
An old California Black Oak or Quercus kelloggii stands against a white sky, on a hill somewhere in central California. The tree is surrounded by lush, grazed grassland. Cows or other farm animals ate away the lower branches of the tree.
Trees
Oak canopy on a white background
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scarab beetle
The age of the tree is about 400 years
Holm oaks (Quercus ilex) affected by drought and the parasitic fungus Phytophthora sp.
Macro shot of leaf in forest
Landscape with green meadow, blue sky and trees in the surroundings of the castle of Pandre in Palas del Rey (Lugo)
Valley oak leaf,
A pest beetle on a rhubarb leaf, in a home garden
Vertical closeup photo of brown acorns hanging on an Oak tree with green leaves in late Summer. New England high country NSW. Soft focus background.
Collage tree species with detail photos of flowers and fruits and leaves
Deciduous tree to 25m, with smooth silvery-gray bark striped with brown; trunk fluted. Leaves oval, pointed, somewhat pleated, sharply toothed, hairy on veins beneath. Catkins greenish to 5cm, with the leaves. Fruit in pendant clusters, surrounded by 3-lobed bracts; nuts small.\nFlowering Season: April-May.\nHabitat: Woods, hedgerows and scrub, occasionally pollarded, mostly in low altitudes.\nDistribution: S. Britain and Europe, north to S Sweden.\n\nThis Picture is made during a Long Weekend in the South of Belgium in June 2019.
Group of tree isolated on white  background , Suitable for use in architectural design.
Tiny acorns growing on an oak tree in a forest.
The Folii gall ball is formed by the fertilized larva of the oak gall wasp (Cynips quercusfolii).
Caterpillars eating a green leaf
Free Images: "bestof:Stenocorus.quercus.-.calwer.41.06.jpg Anisorus quercus Goeze 1783 syn Stenocorus quercus from Calwer's K�ferbuch Table 41 Picture 6 Taxonomy was updated to 2008"
Stenocorus.quercus.-.calwer.41.06.jpg
Orchestes.quercus.-.calwer.33.16.jpg
Anoplodera.scutellata.-.calwer.41.16.jpg
Rhagium.inquisitor.-.calwer.41.03.jpg
Rhagium.mordax.-.calwer.41.01.jpg
Rhagium.bifasciatum.-.calwer.41.04.jpg
Stictoleptura.rubra.-.calwer.41.15.jpg
Pachyta.quadrimaculata.-.calwer.41.07.jpg
Meligethes.aeneus.-.calwer.14.03.jpg
Acmaeops.collaris.-.calwer.41.10.jpg
Leptura.aethiops.-.calwer.41.12.jpg
Alosterna.tabacicolor.-.calwer.41.17.jpg
Leptura.quadrifasciata.-.calwer.41.11.jpg
Leptura.aurulenta.-.calwer.41.13.jpg
Pachytodes.cerambyciformis.-.calwer.41.08.jpg
Leptura.melanura.-.calwer.41.14.jpg
Phytoecia.argus.-.calwer.40.08.jpg
Gaurotes.virginea.-.calwer.41.09.jpg
Rhagium.inquisitor.-.calwer.41.02.jpg
Oxymirus.cursor.-.calwer.41.05.jpg
Rhamnusium.salicis.-.calwer.40.14.jpg
Agrilus sulcicollis.jpg
Amara.fulva.-.calwer.06.13.jpg
Zorochros.dermestoides.-.calwer.26.02.jpg
Hadrobregmus.pertinax.-.calwer.29.01.jpg
Cebrio.gigas.-.calwer.27.01.jpg
Scaphidium.quadrimaculatum.-.calwer.13.07.jpg
Grypus.equiseti.-.calwer.33.03.jpg
Agrilus.cyanescens.-.calwer.24.08.jpg
Omophron.limbatum.-.calwer.01.07.jpg
Astrapaeus.ulmi.-.calwer.12.06.jpg
Amara.communis.-.calwer.06.12.jpg
Carabus.caelatus.-.calwer.02.02.jpg
Cychrus.rostratus.-.calwer.01.12.jpg
Stenostola.ferrea.-.calwer.40.03.jpg
Donacia.clavipes.-.calwer.42.05.jpg
Onthophagus.coenobita.-.calwer.21.07.jpg
Acrossus.rufipes.-.calwer.22.07.jpg
Oberea.linearis.-.calwer.40.04.jpg
Diachromus.germanus.-.calwer.05.21.jpg
Carabus.granulatus.-.calwer.03.01.jpg
Cylindera.germanica.-.calwer.01.06.jpg
Tetropium.castaneum.-.calwer.37.02.jpg
Hypera.plantaginis.-.calwer.32.04.jpg
Percus.grandicollis.-.calwer.06.05.jpg
Agelastica.alni.-.calwer.43.06.jpg
Hypera.zoilus.-.calwer.32.02.jpg
Cicindela.hybrida.-.calwer.01.01.jpg
Bembidion.litorale.-.calwer.06.31.jpg
Loricera.pilicornis.-.calwer.05.05.jpg
Masoreus.wetterhallii.-.calwer.05.08.jpg
Acanthocinus.atomarius.-.calwer.38.09.jpg
Eusphalerum.florale.-.calwer.13.01.jpg
Carabus.cancellatus.-.calwer.03.02.jpg
Lamia.textor.-.calwer.39.03.jpg
Odacantha.melanura.-.calwer.05.10.jpg
Sphodrus.leucophthalmus.-.calwer.06.23.jpg
Meligethes.symphyti.-.calwer.14.05.jpg
Abdera.bifasciata.-.calwer.48.05.jpg
Nicrophorus.vespillo.-.calwer.09.10.jpg
Brachyderes.incanus.-.calwer.31.07.jpg
Philonthus.punctus.-.calwer.12.04.jpg
Oulema.melanopus.-.calwer.42.08.jpg
Hygrotus.inaequalis.-.calwer.08.15.jpg
Graphoderus.zonatus.-.calwer.07.06.jpg
Nicrophorus.germanicus.-.calwer.09.08.jpg
Rhysodes.sulcatus.-.calwer.15.04.jpg
Lema.cyanella.-.calwer.42.09.jpg
Timarcha.olivieri.-.calwer.44.02.jpg
Anoxia.pilosa.-.calwer.19.02.jpg
Hydroporus.erythrocephalus.-.calwer.08.17.jpg
Agrilus.angustulus.-.calwer.24.09.jpg
Dicerca.berolinensis.-.calwer.23.05.jpg
Pterostichus.cylindricus.-.calwer.05.32.jpg
Pterostichus.macer.-.calwer.05.31.jpg
Rhantus.frontalis.male.-.calwer.08.05.jpg
Acmaeodera.degener.-.calwer.23.03.jpg
Colymbetes.striatus.male.-.calwer.08.04.jpg
Lachnaia.sexpunctata.-.calwer.45.09.jpg
Hallomenus.axillaris.-.calwer.48.02.jpg
Margarinotus.brunneus.-.calwer.17.03.jpg
Thanatophilus.rugosus.-.calwer.10.01.jpg
Anostirus.castaneus.-.calwer.26.07.jpg
Dytiscus.dimidiatus.male.-.calwer.08.01.jpg
Hydrophilus.aterrimus.-.calwer.09.01.jpg
Thanatophilus.sinuatus.-.calwer.10.02.jpg
Trypodendron.lineatum.-.calwer.30.03.jpg
Phyllobius.argentatus.-.calwer.32.07.jpg
Endecatomus.reticulatus.-.calwer.29.06.jpg
Dermestes.lardarius.-.calwer.16.05.jpg
Megatoma.undata.-.calwer.16.07.jpg
Lignyodes.enucleator.-.calwer.33.05.jpg
Trogoderma.glabrum.-.calwer.16.09.jpg
Chrysolina.fastuosa.-.calwer.44.05.jpg
Patrobus.atrorufus.-.calwer.06.19.jpg
Anophthalmus.schmidtii.-.calwer.06.29.jpg
Hister.quadrimaculatus.-.calwer.17.04.jpg
Cerambyx.cerdo.-.calwer.36.02.jpg
Prostomis.mandibularis.-.calwer.15.05.jpg
Monochamus.sutor.-.calwer.39.01.jpg
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