Pedunculate Oak (quercus robur) Acorn
Fresh acorn, close-up
Oak sapling (Quercus robur)
Acorn and oak leave
Oak acorn
Oak (Quercus robur)
Acorns and oak leaves
Two acorns and oak leave, close-up
Acorn
Oak acorns and autumn leaf
Acorns
Sprouting acorn
Oak powdery mildew on Quercus robur
Quercus robur
English Oak (Quercus robur)
Section of English oak, polarised light micrograph
Oak mildew on a Quercus robur leaf
Knopper gall
Cherry gall on pedunculate oak (Quercus robur) leaf
Germany, Bavaria, Lower Franconia, Pedunculate Oak, Quercus robur
Oak acorns (Quercus robur)
Knopper gall on an acorn
Cross-section of English oak, polarised light micrograph
An Autumn still life with stone mushrooms
Oak (Quercus robur) acorn germinating
English oak buds
Ancient oaks (Quercus robur)
Oak apple gall on oak (Quercus robur)
Oak leaf litter (Quercus robur)
Studio shot of single autumn leaf of oak tree (Quercus robur)
Male catkins of common oak (Quercus robur)
A tylose in oak heartwood, Quercus robur
Acorn knopper galls
English oak tree (Quercus robur) trunk
どんぐり
ドングリ
top view of pedunculate oak tree isolated on white background
Oak Leaf Epidermis (Quercus robur)
Oak Leaf Stoma (Quercus robur)
Spangle galls on leaves of Quercus robur
ミズナラ
Spangle galls on a leaf of Quercus robur
Autumn leaves and acorn cups on plate
Artichoke gall
Acorns (Quercus robur)
Winter in forest.
栃木県 ドングリとコナラの葉
紅葉の葉
Germany, Ivenack, Ivenacker Eichen, very old pedunculate Oak
english oak tree isolated on white background
Oak bark
Germany, East Allgaeu, pedunculate oak on a meadow at twilight
top view of english oak tree isolated on white background
fall english oak tree isolated on white background
winter english oak tree isolated on white background
Marchpane acorn
top view of winter english oak tree isolated on white background
top view of fall english oak tree isolated on white background
Oak acorns (Quercus sp.)
Oak xylem
English oak tree (Quercus robur) and stone wall.
Single pedunculate oak on a meadow
ミズナラの実
Oak Acorn on Branch on White Background
Oak tree pollen, SEM
Caucasian Oak acorn (Quercus macranthera)
ドングリとカラマツの苗
Oak acorns (Quercus robur) on moss
コナラの葉と実
Germany, Baden-Wuerttemberg, old Pedunculate Oak on a meadow
Acorn with oak leaf on white background
Goat's cheese wrapped in an oak leaf (Normandy)
Holm oak (Quercus ilex) with acorns
Ringed acorn cups
Tracheary vessels in oak wood
ミズナラの葉とドングリ
ミズナラの幼木
Sunrise over Oak Tree, Autumn colours, Fenland
樹木・コナラ ブナ科
Oak leaves
コナラ
クヌギの実(ドングリ)
コナラの実(ドングリ)
ドングリの発芽
Cross-section of Quercus robur heartwood
Autumnal oak leaves lying on woodland floor
Oak wood, light micrograph
Large group of acorns
Kermes oak (Quercus coccifera), artwork
Cork oak (Quercus suber), artwork
Holm oak (Quercus ilex), artwork
Downy oak (Quercus pubescens), artwork
Dandelion field and single pedunculate oak
どんぐり・マテバシイ
English Oak tree leaves in Spring colours
木の実
Ancient Cathedral Oak, in Savernake Forest, Wiltshire, USA
English Oak in Field
樹木・クヌギ ブナ科
Shiitake Mushrooms Growing on an Oak in the Ozarks of Missouri
マテバシイの実
Oak bark in a wooden scoop
Germany, Bavaria, Fuessen, flowering meadow with dandelions and common oak