ru9's picture

Little acorns

Observed: 28th March 2010 By: ru9
S159 Neighbourhood Nature - current student
i spot pictures 010
i spot pictures 011

these acorns were from an oak i grew from acorn

Species interactions

No interactions present.


wad25's picture

Little Acorns

Looks like you have a sample of Quercus robur. The first picture shows knopper galls on the acorns - gall wasp Andricus quercuscalicia. The second picture shows oak marble galls - Andricus kollari. Both are asexual generations.


Norwichnaturalist's picture

Marble Galls

Oak Apples are huge and soon dry and falll to the ground

Colin Jacobs.
Wild Flower Society member

Melica's picture


I was going to point out the Knopper Galls and Marble Galls but was beaten to it - and I wouldn't have known the names of the wasps anyway. There's more about galls on and even a British Gall Society

petershirley's picture

Acorn gall

Just to be absolutely correct the knopper gall's name is Andricus quercuscalicis, not quercuscalicia.

Peter Shirley

wad25's picture

Acorn Gall

Oops! A typographical error.
Thanks for pointing this out Peter.

FSTC's picture

Quercus robur

I agree with this ID - this is the 'pedunculate' oak: acorn on a stalk; leaf direct on the twig. Sessile oak (quercus petrea) is the other way round.

ru9's picture


thank you all for the comments, i have learnt much from all of your comments