Wouldn't eat any tubers other than the ones I know are OK to eat. Some of them are extremely poisonous, like aconite. Best to leave well alone, UNLESS you know what you are doing. Same goes for wild mushrooms, I'd sooner buy supermarket ones that are guaranteed to be OK.
A lot of the Dutch died at the end of WW2, they were so hungry they tried eating bulbs of every variety. There also weren't many dogs or cats around, those that hadn't already died of starvation were themselves eaten. If you are dying of starvation, anything that will stay down is palatable. Even dog, cat, rat, hegehog or horse. Nature is a Mother, and as such she's tried to make things that are not good for you bitter. It's no good for the plant, either. Lots of seeds are designed to pass unharmed through an animal's system in order that they germinate AWAY from the parent plant, thus aiding propogation of the species. Tomatoes are a good example, I've been told (don't know if true) that they won't germinate unless the gelatinous coat is removed, by going through an animal's system.
I'd be interested to know (as there are lots of clever folks hiding on here) if there is ANYTHING that's bad for you that tastes nice? I thought most things that would make you ill were bitter, on purpose.
