One of my favorite fall wild edibles is a pain to crack open, but well worth the trouble. If you can break into the armored fortress that is a hickory nut, you won't be disappointed. The fatty nut meats of most species are rich, oily, and pecan-flavored. This flavor shouldn’t be a surprise since pecans are a southern species of hickory. Here’s how to identify and use the highest calorie wild plant food in the U.S.