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Oak  gall
The Valley Oak, can sometimes be riddled with large  growths along the stem.   Small wasps produce these oak apples or galls. The large oak apples, are induced by the gallwasp Andricus californicus.  Shollenberger Park; Petaluma Wetlands; Petaluma; Sonoma County; California. Quercus lobata.
Oak galls, ink nuts on oak. Cynips quercusfolii
Natural green acorn of unripe wild walnut against a trunk
A oak tree acorn
Bur oak leaf,
Close-up of large Galls on Common oak leaves created by gall wasp Cynips quercusfolii in Estonian boreal forest
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.
Branch of an oak tree with dry green leaves in autumn
Acorns on a branch, beauty in nature
Cynips quercusfolii known as gall wasp, round ball gall underside of common oak leaf Quercus robur. Inside is bug larva. Autumn day.
Oak tree acorn in Termessos National Park
Beechnuts
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Poplar spiral gall aphid or Pemphigus spyrothecae on leaf petiole of Populus nigra (Black poplar)
View of an acorn plant.
Green brown and red oak apple on a oak branch with green leafs and beauty background
Tiny acorns growing on an oak tree in a forest.
Embark on a visual journey through the captivating world of plant-gall interactions with this mesmerizing close-up photograph. Behold the exquisite beauty of a parasitic gall midge's creation on a beech leaf—a stunning reddish cone-shaped gall that glistens with a beguiling luster. This image encapsulates the delicate dance between the gall midge and the beech tree, where the parasitic relationship gives birth to a metaphorical jewel. Witness the harmonious coexistence of nature's intricate forces, as the gall's crimson hues intertwine with the leaf's vibrant palette. Immerse yourself in the mysterious allure of this botanical spectacle, a true testament to the marvels of bioengineering and ecological balance
oak tree branch with acorns
Leaf i found with some interesting creatures on the underside.
Oak galls on an oak leaf close-up
Acorn on the tree
Quercus petraea(binomial name) sessile oak, Cornish oak, Irish Oak or durmast oak on the tree
Sessile Oak (Quercus petraea) - Küre Mountains National Park
trio of acorns on a branch in woodland
Grey alder (Alnus incana subsp. incana) with cones. Macugnaga. Verbano-cusio-ossola. Piedmont. Italy.
Close up of a oak artichoke gall, caused by a gall wasp
Close-up of many green leaves of an English Oak tree (Quercus robor), as it comes into full leaf in midsummer in central England
Free Images: "bestof:Andricus quercuscalicis Knopper Gall.jpg en Andricus quercuscalicis on Quercus robur at Lynn Glen Dalry Scotland own Rosser1954 Roger Griffith 2010-08-16"
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Nuphar lutea leaf.JPG
Nuphar lutea colony.JPG
Scottish Wildlife Trust centre.JPG
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Chêne glands.jpg
Lawthornswt.JPG
Lawthornswtboardwalk.JPG
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Andricus quercuscalicis Knopper Gall.jpg
Knopper Galls (Andricus quercuscalicis).jpg
Andricus quercuscalicis.jpg
Andricus quercuscalicis on Quercus rubor.jpg
Knopper galls of Andricus quercuscalicis.jpg
Developing Knopper galls.JPG
Knopper gallsand acorn case.JPG
Andricus quercuscalicis galls on Sessile Oak.jpg
Andricus lignicola - Cola-nut Gall.JPG
Developing Oak Marble gall.JPG
Developing artichoke gall.JPG
Common Spangle gall.JPG
Common Spangle gall - detail.JPG
Knopper gall on oak (Quercus robur) induced by Andricus quercuscalicis (gall wasp), Arnhem, the Netherlands.jpg
Knopper gall on oak (Quercus robur), induced by Andricus quercuscalicis (gall wasp), Arnhem, the Netherlands.jpg
Puccinia poarum on Coltsfoot leaf.JPG
Tanacetum vulgare at Lynn Glen.JPG
Puccinia poarum on Coltsfoot upper epidermis.JPG
Coltsfoot lower epidermis with rust (Puccinia poarum).JPG
Detail of Puccinia poarum on Coltsfoot upper leaf surface.JPG
Andricus quercuscalicis (gall wasp) larva inside Knopper gall, Arnhem, the Netherlands.jpg
Plucking Post.JPG
Oyster Gall.JPG
Wasp bike on Hawthorn.JPG
Tar Spot on Sycamore.JPG
Andricus kollari - the Oak Marble gall.JPG
Andricus lignicola - the Cola-nut gall.JPG
A rust (Puccinia poarum) on lower surface of Coltsfoot.JPG
Cola-nut Gall Andricus lignicola.JPG
Red-Pea gall Cynips divisa on Oak.JPG
Q. robur with Smooth Spangle Gall.JPG
Smooth Spangle Gall.JPG
Common Spangle Gall - leaf upper.JPG
Oyster Gall on Oak leaf.JPG
Red spotted Oyster Gall.JPG
Puccinia poarum on Coltsfoot lower epidermis.JPG
Lynn Spout turbine house.JPG
Giffordland Moot.JPG
Raven's Craig Glen.JPG
Caaf Mill Lynn Glen Dalry.JPG
Giffordland Moot Hill approach.JPG
Dalry, Laigh Lynn Hamlet.JPG
Monkcastle House from Old Monkcastle.JPG
Conocephalum conicum in Lynn Glen.JPG
Lynn Spout, Caaf Water.JPG
Lynn Spout Detail Dalry.JPG
Giffordland Burn and wood.JPG
Cadzow oaks chase.JPG
Cadzow oaks with replanting.JPG
Oak tree epiphyte.JPG
Oak Mildew.JPG
Monkcastle Burn warerfall in the glen.JPG
Small rock-cut basins 2.JPG
Coltsfoot upper epidermis with Puccinia poarum.JPG
Monkcastle Glen.JPG
Large rock-cut basin.JPG
Giffordland Glen.JPG
Caaf Mill Dalry detail.JPG
Baidland Mill.JPG
Drumcastle Mill.JPG
Giffordland House.JPG
Giffordland Beechwood.JPG
Monkcastle, Dalry - frontage.JPG
Craighead Farm, Dalry.JPG
Lynn Glen Primroses.JPG
DSM Dalry Factory.JPG
Caaf Mill, Lynn Glen.JPG
Flashwood Stile.JPG
Dalry from Baidland Hill.JPG
BrisbaneGlen021108.jpg
Linncraigs Farm ruins, Dalry.JPG
Woodside House, Dalry, Ayrshire.JPG
Monkcastle - stair tower.JPG
Broadlie Dam.JPG
Broadlie House Dam.JPG
Cunningham Baidland stile.JPG
Flashwood Lime Kiln side.JPG
Dalry from Linncraigs Hill.JPG
Waulkmill Glen reservoir viaduct.JPG
Tannahill's Well.JPG
DSM Dalry railway connection.JPG
Rye Water Ford, Dalry.JPG
Amethyst Deceiver.JPG
Lynn Glen footbridge.JPG
Glen Burn Waterfall.JPG
Flashwood Stile slots.JPG
Dalry Sycamore tree, Ayrshire.JPG
Monkcastle - central - carved head.JPG
Monkcastle - south facing, rear.JPG
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