Eating the tree...

[CatDad]

I wish I had an answer, but I went out to look on the sites that list toxic and non toxic. I could not find pine or fir.

If Olivia does not throw up anymore, I would say let it pass for tonight and then call the vet in the morning.

I am just full of help.

EDIT:
Ok, I completely forgot that you work at a vet.