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Bur Oak Acorn Cluster (Quercus macrocarpa) just starting to ripen.  They were photographed in the â??sweet lightâ?? of the late afternoon sun.
Oak tree acorn in Termessos National Park
A beautiful acorn found in the mountains of Fukuoka Prefecture, Japan.
Oak autumnal leaves with acorns. Background image of leaves.
Oak leaf with galls of Gall wasp, close-up.
Acorns and oak leaves on white background with clipping path included.
Close up view on a water drop falling from the tip of acorn on a tree branch in autumn in the mystical forests near Kalambaka, Meteora, Thessaly, Greece, Europe. Selected focus on a chestnut oak tree
Horizontal closeup photo of a group of three ripe brown acorns hanging by the stem on an Oak tree with green leaves in late Summer. New England high country NSW.
Bur oak (Quercus macrocarpa) acorns ripening on the tree.
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Close-up of three acorns lodged in between crack of brown bark by bird or small animal to save for the winter
Quercus durata, the California scrub oak, or leather oak, is an oak endemic to California.  Acorn.  Fagaceae.
Branch full of acorns
Acorns of northern red oak in midsummer, Connecticut. Acorns of this tree take two years to mature. Every two to five years, an oak may produce an exceptionally large number -- maybe 10,000 from a large tree. This is called a \
Oak leaf with galls caused by Neuroterus quercusbaccarum insect (family Cynipidae), isolated on white background, copy space
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.
Oak  gall
Acorns and oak leaves in Colorado, USA, North America
Oak galls on an oak leaf close-up
Oak fruit lies on the ground in the moss
A lot of waste from acorns near the tree on which the squirrel lives. A large pile of oak acorns is scattered near the foot of the tree. Forest backgrounds and textures and habitats of wild forest animals.
oak tree branch with acorns
A closeup shot of an autumn season scene with fallen acorns cups and twigs in a forest
Colorful autumn leaves.
Quercus myrsinifolia \nシラカシ
Tiny acorns growing on an oak tree in a forest.
A group of three Oak Galls, or Oak Apples, on a small young oak tree. Taken in a woodland in West Yorkshire, UK, with a Canon EOS 700d digital camera.
Horizontal extreme closeup photo of dry brown withered leaves and black striped acorns on the twig of a Pin Oak tree in Autumn. Soft focus background. Uralla, New England high country, NSW.
Cherry galls on oak leaf, caused by gall-wasp (Cynips quercus).
Sessile Oak (Quercus petraea) - Küre Mountains National Park
Free Images: "bestof:oak gall acorn Galls on acorns Explore swallowedtail's 3081 photos on Flickr!"
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