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Two dry brown oak leaves branch isolated on white. Autumn season fallen foliage.

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.

Brown acorns and branch with green oak leaves on white isolated background. Design element. Autumn. Collection

Austrian oak acorn isolated on white background

Kermes oak, Quercus coccifera, with acorns and leaves. This is the only oak species that grows as a bush

Oak branch with acorns and oak leaves isolated on white.

Spatoglossum solieri brown algae isolated on white. Foliaceous seaweed.

$Large spreading tree to 45m, white pale gray, densely fissured bark; shoots usually hairless. Leaves oval, with rounded lobes, rounded at base and with a very short stalk.\nFlowering Season: April-May.\nAcorns with a finely hairy, gray-green cup, long-stalked.\nHabitat: Woods, hedgerows on a variety of soils, especially basic loam and clays.\nDistribution: Throughout Europe, except the north, the Faeroes and Iceland\n\nWidely planted, especially in Parks.$

Autumn leaves isolated on white background

Sessile Oak (Quercus petraea) - Küre Mountains National Park

Collection of oak leaves isolated on white background.

Top up view isolated leaf on dark background. fix for your design element.

oak seedling plant with root isolated on white background

Growing brown acorns on an oak branch. Seeds, fruits, nuts of a forest tree. Autumn. Oak acorn

Oak tree autumn dry brown leaf and branch isolated on white background. Abaxial surface or lower side of fall foliage.

Oak autumnal leaves with acorns. Background image of leaves.

Turkey oak (Quercus cerris) fruits and leaves isolated on a white background.

Horizontal closeup photo of two brown acorns hanging on an Oak tree with green leaves in late Summer. New England high country NSW. Soft focus background.

Herbarium pressed branche, leave and flower tree oak isolated on white

Acorns and oak leaves in Colorado, USA, North America

Free Images: "bestof:Orchestes.quercus.-.calwer.33.16.jpg Orchestes quercus from Calwer's K�ferbuch Table 33 Picture 16 Taxonomy was updated to 2008 using mostly the sites http //..."

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Geodiscelis_longiceps,_f,_chile,_side_2014-08-08-16.33.30_ZS_PMax.jpg

Southern_armyworm,_face_2014-06-04-18.57.16_ZS_PMax.jpg

southern_armyworm,_moth,_face_2014-06-06-16.32.21_ZS_PMax.jpg

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Coelioxys_alternata,_F,_Side,_Virginia,_Franklin_County_2014-12-05-16.17.57_ZS_PMax.jpg

Conura_dema?,_U,_Maryland,_side_2015-07-10-16.46.28_ZS_PMax_UDR.jpg

modesta,_male,_back_2012-07-16-18.10.jpg

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Lasioglossum_glabriventre,_F,_Face1,_WY,_Lincoln_County_2014-06-20-16.15.37_ZS_PMax.jpg

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Nomada_maculata,_m,_back,_Charles_Co._Maryland_2016-06-27-16.44.jpg

Nomada_maculata,_m,_face,_Charles_Co._Maryland_2016-06-27-16.59.jpg

Anthophora_californica,_f,_face,_Hidalgo_Co.,_Animas,_NM_2016-07-19-18.16.jpg

Nomada_denticulata,_m,_right_side,_Charles_Co._Maryland_2016-06-27-16.34.47_ZS_PMax_UDR.jpg

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Nomada_denticulata,_m,_face,_Charles_Co._Maryland_2016-06-27-16.19.00_ZS_PMax_UDR.jpg

Ptilothrix_bombiformis,_m,_right_side,_Pr._George's_Co._Maryland_2016-06-16-19.30.jpg

Ptilothrix_bombiformis,_m,_back,_Pr._George's_Co._Maryland_2016-06-16-18.57.jpg

Coelioxoides_waltheriae,_f,_peru,_side_2014-08-09-11.10.33_ZS_PMax.jpg

Pachyanthidium_aff_benguelense,_f,_6711f07,_angle_2014-08-07-11.16.56_ZS_PMax.jpg

Centris_haemorrhoidalis,_M,_Back,_Puerto_Rico,_Yauco_2014-09-23-16.26.57_ZS_PMax.jpg

Andrena_distans,_F,_Back2,_VA,_Gales_County_2014-01-24-14.16.58_ZS_PMax.jpg

Psaenythia_species,_m,_argentina,_angle_2014-08-07-16.30.13_ZS_PMax.jpg

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paranomada_velutina,_f,_arizona,_face_2014-08-09-15.30.33_ZS_PMax.jpg

Anthophora_dalmatica,_F,_Side,_Greece,_Aegean_Islands_2014-12-09-17.33.49_ZS_PMax.jpg

Panurginus_potentilla,_m,_face,_prince_georges_county_2015-05-06-06.34.jpg

Panurginus_potentilla,_m,_prince_georges_county,_back_2015-05-06-06.41.11_ZS_PMax.jpg

Osmia_brevicornis,f,_jaw,_kyrgystan_2014-08-08-10.33.33_ZS_PMax.jpg

Nomada_tiftonensis,_m,_back,_Minnesota_2016-04-19-13.46.jpg

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Dynastes_tityus,_f,_side_face,_MD_2016-02-24-15.16.jpg

Melissodes_apicata,_f,_face,_Maine,_Du_Clos_2015-12-01-16.48.jpg

Andrena_caerulea,_f,_face,_Santa_Barbara,_CA_2016-08-12-16.45.jpg

Anthophora_ursina,_M,_Side,_Georgia,_Fannin_County_2014-10-24-16.21.jpg

Andrena_caerulea,_f,_side,_Santa_Barbara,_CA_2016-08-12-16.59.jpg

Diadasia_australis,_M,_side,_Pennington,_SD_2015-11-12-10.33.02_ZS_PMax_UDR.jpg

Oxybelus,_U,_Face,_FL,_Duval_County_2014-01-31-16.41.22_ZS_PMax.jpg

Ceratina_rectangulifera,_m,_panama,_side_2014-12-06-16.36.26_ZS_PMax.jpg

Ceratina_rectangulifera,_m,_panama,_back_2014-12-06-16.22.47_ZS_PMax.jpg

Diphaglossa_gayi,_f,_side,_chile_2014-08-04-18.17.33_ZS_PMax.jpg

Megachile_melanopyga,_F,_Back,_Greece,_Aegean_Islands,_Lesvos,_Mytilene_2015-03-06-12.34.33_ZS_PMax.jpg

Centris_haemorrhoidalis,_M,_Face,_Puerto_Rico,_Yauco_2014-09-23-16.36.57_ZS_PMax.jpg

Acanthopus_excellens,_f,_feature,_brasil_2014-08-06-13.33.14_ZS_PMax.jpg

Ceratina_rectangulifera,_m,_panama,_face_2014-12-06-16.30.10_ZS_PMax.jpg

Panurginus_potentilla,_m,_side,_prince_georges_county_2015-05-06-06.49.23_ZS_PMax.jpg

Southern_armyworm_pupae,_underside_2014-06-04-18.34.00_ZS_PMax.jpg

Southern_armyworm,_moth,_face_2_2014-06-06-15.00.53_ZS_PMax.jpg

Southern_armyworm,_back_2014-06-04-18.42.49_ZS_PMax.jpg

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Eucera_dubitata,_m,_ga,_baker,_face_2015-01-08-16.25.51_ZS_PMax.jpg

Ceratina_arizonensis,_side2,_ca,_santa_barbara_2015-04-20-12.16.53_ZS_PMax.jpg

Ceratina_tricolor,_f,_panama,_face_2014-08-29-16.00.01_ZS_PMax.jpg

Ceratina_tricolor,_f,_panama,_face2_2014-08-29-16.04.02_ZS_PMax.jpg

Ceratina_tricolor,_m,_panama,_side_2014-08-29-16.37.08_ZS_PMax.jpg

Nomada_annulata,_M,_Side,_OH,_Washington_County_2014-05-23-17.16.22_ZS_PMax.jpg

Edwyniana_near_flavicornis,_f,_00605f08,_back,_chile_2014-08-04-15.34.16_ZS_PMax.jpg

Bombus_ternarius,_F,_Back,_NY,_Franklin_County_2014-07-01-16.18.08_ZS_PMax.jpg

Osmia_versicolor,_F,_Face,_Greece,_Aegean_Islands,_Lesvos,_Mytilene_2015-02-19-16.24.37_ZS_PMax.jpg

Andrena_distans,_F,_Side,_VA,_Gales_County_2014-01-23-16.37.47_ZS_PMax.jpg

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Gasteruption,_U,_Maryland,_side_2015-07-10-16.53.jpg

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