knopper gall
An oak gall that results in the proliferation of the acorn to take the shape of popcorn.
This definition is abridged from A – Z of tree terms: A companion to British arboriculture.
Read the preface. Order the book.
An oak gall that results in the proliferation of the acorn to take the shape of popcorn.
This definition is abridged from A – Z of tree terms: A companion to British arboriculture.
Read the preface. Order the book.