Thanks for such a thoughtful response! It sounds like you would go for more mild flavored greens, rather than the more bitter ones. But -- that can change over time. The other foods you list are strong flavors, but not bitter flavors. Maybe a good comparison, rather than arugula, would be radicchio or endive, or if you garden, older lettuce that is starting to bolt. I should add those to my list.

I'll have to write more about foraging guides. I've used a lot of them over the years! Thanks for the idea!