I’m sure I read it somewhere, but I just checked one of my books, and it doesn’t say that, and reading online, I can’t find anything with evidence either way. Seems like the main risk is of you don’t clean them very well and get a lot of plant matter encased in it. Doesn’t take much yew to make you sick.

Either way, though, thanks for calling me out! I don’t live near any yews, so it’s not something I’ve ever had to think about.