If you're going to be hiking anyway, it pays to keep your eyes open. Depending on the time of year, there will be berries and other fruits available, also different nutmeats. You may even find grains. And don't forget the seasonings. Canadian ginger, wild garlic, wild onions, even lemon balm. Wild carrots abound in certain areas. If it looks like a carrot top, dig up the root and smell it. It is a very distinctive smell. It will be white, not orange but will smell like a carrot. It will be tough so you have to slowcook it to tenderize. You can also find wild parsnips.
Hi...
Some good suggestions there. I'd also like to add fiddlehead (baby) ferns and dandelion leaves.
I would tend to be very cautious about the "white carrots", though. White root and green top...is not that also describing "hemlock" (no, not the tree), which is very poisonous, and which once was used as a poison?