Grevillea safe for perches?

[Oedipussrex]

My boyfriends mum recently had to clear her property for fire safety and she has chopped up what im pretty sure is some sort of grevillea. I want to make some new perches for Pickle out of it for christmas so i searched and there are certain types of grevillia listed on various safe perch/toys lists that ive found. But i cannot tell what type of grevillea it is specifically.
are all types of grevillea safe?