OOC:
My original intent with this was that you'd just have to make a choice to keep or leave them, buuuuut, you're right, this is something they'd be taught if it were a known species. SO.
The interesting thing is that you've all probably had the purple runs before. When someone inadvertently uses Vale Plums in a pie or something, everyone who eats it gets sick, but it doesn't really
hurt you. On the other hand, those who have eaten the fruit directly off the trees or, at least raw, have had a far worse time, fever, delusions, etc.
OOC:
This turns the question to...
The Matter of the Plums
Keep them and take the time to cook them. It'll only be another day here.
Leave them and carry on, we have unknown places to be.
OOC:
If you'd rather talk through it that's fine, this is just here in case the purple runs aren't a conversation topic we need more detail on.