I found a few pototo looking things in the garden on top of the soil today, this is a new garden to me and I am still discovering all kinds of things. I'm pretty sure they didn't bloom in the spring, they are not like any bulb or corm I am aware of, no leaves. The largest one had a tuft of roots growing into the soil and they are the firmness of a pototo that has been kept in the fridge too long, going a bit soft. They smell kind of earthy but they have been outside for a long time suspect. Any ideas?