This stuff tastes something like dandelion and spinach but sour. The flower stalk can get 12+ inches long and has a sweet and lip puckering sour taste. I transplanted some in my yard years ago and now it's the entire yard in every free nook and cranny, easily 95% of all plant life. It's a tuber that has layers like an onion and survives years without water then when it rains will sprout everywhere.

The squirrels dig them up and reburry them in bunches but they don't make a dent in the population.

The bulb isn't sour, it tastes exactly like a sunchoke or like a raw peanut. I quite like the taste but it takes a little effort to scrape off the brown paper-like layers to get to the white bulb inside. Could make for an excellent addition to salads.