Also, the “it’s species they know” thing is often exactly the problem: there are species on one continent that look exactly like a species on another continent, but one of them is edible and the other is deadly.

Yeah, I’ve heard this is a thing with some immigrants with East Asian background. There’s a species of mushroom in Asia that is totally edible, but its look-alike in North America is deadly.

So every year there’s a handful of people who accidentally poison themselves, because they didn’t do research on local mushrooms (or the info that’s available is in English and they’re not all that fluent in the language.)