​​“I added up a list of all the things I collect within walking distance of my house, and it was 346 species,” says renowned forager Sam Thayer. A count of plants (excluding spices) in all the products at his local grocery store? 124. For more than two decades, Thayer’s been touting the bounty of readily available wild foods, and the people he encounters “practically lose their minds” when they try unexpected delicacies such as a thistle stalk. Reactions, he says, are “not just ‘I could eat that if I had to,’ but ‘That’s like the best thing I’ve ever had!’”…