Back in the old days, the native people of North America used various plants to obtain the needed sugar for their diets. With the arrival of the first settlers, a few of the plants the American Indians used become very popular, and they stay so throughout the years, now being sold commercially.
When survival foraging is on my “TO DO” list for the week, I often referred to, what I call a rule of fair foraging, “Reap where you did not sow, but only if it would otherwise go unused unless you take it?” And it’s amazing how much goes unused . . . especially in community gardens.