Oak, Quercus robur, Spangle galls, Neuroterus quercusbaccarum on common oak, Close view of two backlit leaves showing the eggs of this parasitic wasp.
Common oak, Quercus robur, leaves infested with the common spangle gall caused by the cynipid wasp.
Oak, Quercus robur.
Oak, Acorn, Quercus robur.
Oak, Acorn, Quercus robur.
Corkoak, Quercus suber.
Sessile oak, Quercus petraea, snow covered leaf hanging on a twig.
Oak, Quercus robur. Digitally manipulated image of oak tree with stark,bare branches in winter landscape with fence line behind. Use of cool, muted colours create the effect of an illustration or pain...
