A large branched tooth fungus, with spines up to a centimetre long hanging from the branches.  It is white and soft when young but becoming brittle and yellowing with age.

There are several other Hericium species

Photograph in habitat to show branching structure.  An indication of overal size and length of hanging spines is helpful.  Note tree species and habitat.

Standing and fallen hardwood trees, often beech, birch or ash. 

Late summer and autumn.

Rare