Quercus cerris
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Quercus cerris, the Turkey oak or Austrian oak, is an oak native to south-eastern Europe and Asia Minor. It is the type species of Quercus sect. Cerris, a section of the genus characterised by shoot b
Mature Turkey oak at Hillersdon House, England
A Turkey oak coming into leaf
Hungarian oak-Turkey oak (Quercetum frainetto-cerris Rud) forest in the Balkans
Andricus quercuscalicis
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Andricus quercuscalicis is a gall wasp species inducing knopper galls.
Galls (upper left and right) formed on acorns on the branch of a pedunculate (or English) oak tree by the parthenogenetic generation Andricus quercuscalicis.
A larva of Andricus quercuscalicis in a gall formed in Quercus robur