Hazelnut, Cob nut, Corylus avellana, Detail of leaves growing outdoor on the tree.

Hazel, Cob-nut, Corylus avellana, Mass of brown coloured nuts next to cracker.

Hazelm Cob Nut, Corylus avellana, Close up of green leaf growing outdoor showing pattern.

Hazel, Cob nut, Corylus avellana, Close up of yellow flowers and spiky thorns.

Hazel, Purple leaved filbert, Corylus maxima 'Purpurea', backlit leaves showing red colour.

Hazel, Purple leaved filbert, Corylus maxima 'Purpurea', backlit leaves showing red colour

Hazel, Purple leaved filbert, Corylus maxima 'Purpurea', backlit leaf showing red colour.

Catkins of Hazel, Corylus avellana, covered in hoary frost, on a twig against a soft focus snowy background.

Hazel, Corylus avellana, Snow covered catkins on a twig against a soft focus snowy background.

New, green leaves of Hazel, Corylus avellana.

Hazel, Cob-nut, Corylus avellana.

Hazel, Cob-nut, Corylus avellana.